1 Irons Set of Same Length Clubs Number 3 through Pitching Wedge showing the soles and cavity
1 Irons Set of Same Length Irons Number 3 through Pitching Wedge showing the soles face and cavity
1 Irons Used-Demo Clubs save up to 500 US dollars
Specifications Chart for 1 Iron Golf Clubs
Photo of Individual 1 Iron Golf Club upright
Photo of 1 Irons
1 Irons Set of Same Length Clubs Number 3 through Pitching Wedge showing the soles and cavity
1 Irons Set of Same Length Irons Number 3 through Pitching Wedge showing the soles face and cavity
1 Irons Used-Demo Clubs save up to 500 US dollars
Specifications Chart for 1 Iron Golf Clubs
Photo of Individual 1 Iron Golf Club upright
Photo of 1 Irons

Used/Demo 1 Irons

Regular price $599.00 Sale price $499.00

Shipping calculated at checkout.

Used/Demo Clearance!

Used/Demo golf clubs are those left over from our golf shows and demo day event. They are in excellent condition and an exceptional value at the discounted prices. Available in all sizes, fully covered under our limited warranty, but at the discounted prices are NOT included in our 30-day return policy. 


Our original irons, the 1 Iron Collection, introduced the golfing world to Single-Length play in 1997! Without a doubt the easiest to hit irons that you will ever own. You can use the same swing and ball position with every iron and on every shot for a stunning improvement in your ball striking ability. Just imagine how your game will improve when your #3 and #4 irons are as easy to hit as your wedges.  Click here for all our 1 Iron Line offerings.

Please allow 7-10 business days for your order to ship.
  • Custom fitted based upon your wrist-to-floor measurement (see below for measurement instructions).
  • Tour proven - Conforms with the Rules of Golf.
  • Right-hand only.
  • Built in the USA.
  • Bottom two scoring lines paint filled white to make clubface alignment precise and easy.
  • Deep undercut rear cavity produces a low COG for maximum trajectory and distance.
  • The classic clubhead shape and mid-size top-line promote full confidence at address.
  • Steel shafted for the highest level of consistency/accuracy.
  • Identical club length throughout the set.
  • Identical clubhead lie angle, swing-weight and (MOI), and shaft flex throughout the set.
  • Shaft flex plane orientation (Spine Align/Puring).
  • Installed with oversized grips.

    Custom Fitting Single Length Irons

    All human beings share the same skeletal, muscle, tendon, and joint functions and from a mechanical standpoint are the same regardless of height or sex. Non-mechanical differences arise in custom fitting however, for instance: the height of a bicycle seat needs to be greater for a taller person than a shorter person even though the mechanical design of the bicycle remains the same. By the same token there is only one true fitting variable in the building of golf clubs and that is club length. Based upon your wrist-to-floor measurement we adjust your club length to correspond to the lie angle of our club-heads in order to ensure a proper fitting.

    Wrist-to-Floor Measurement
    Taking your Wrist-to-Floor Measurement:
    • The wrist-to-floor measurement should be taken while standing on a hard surface.
    • Wear jogging/gym shoes (not golf shoes) not in excess of 1.5" sole.
    • Stand with your back against the wall at strict military attention. Place your shoulders and head against the wall, your feet together, and your arms rigid and straight down at your sides.
    • Hold a pencil in your right hand (right handed golfer). Back your arms against the wall and then take the pencil and make a mark where your left wrist joint hits the wall. Just the opposite for a left-handed golfer.
    • Measure from this mark to the floor.
    • Important: Do not round-up the measurement to the next higher inch increment. For instance, if your measurement is 34 and 7/8″, do not round up to 35″.

    One Iron Golf Club Lengths

    One Iron Golf Club Lengths - Wrist to Floor Measurements

    Very Important:

    Do not order based upon what you consider to be your favorite iron (ie: #7 iron), and do not use that corresponding wrist-to-floor measurement when placing your order. When ordering you need to specify your actual wrist-to-floor measurement to ensure a proper fitting. This chart reflects club length based upon our club-head lie angles. Consequently, our fitting process does not apply to any other brand.

    For the taller golfer:  based upon your wrist-to-floor measurement you may be concerned that your irons would be a typical #3 or #4 iron club length; however, do not compare your measurement to your current #3 or #4 iron. The lie angles of your “long” irons are much flatter than ours which, at your size, requires you to bend over excessively and reach out for the ball at address. The club head lie angle of our irons is 63.5º which is far more upright and allows you, for the first time, to stand upright and much closer to the ball at address resulting in the ideal upright swing posture and swing plane. The taller golfer benefits the most from our fitting formula since they have never played golf clubs that have even come close to fitting them properly. The result being that they have had to develop a very inefficient posture and swing where they are bent over excessively and reaching way out for the ball with every iron in the bag.

    How Does the Wrist-to-Floor Measurement Work?

    It is based upon trigonometry. At the point of ball impact in the downswing, your wrist, the ground, and the club-head, form a right triangle. Assuming an ideal swing posture, there is a non-linear mathematical relationship between your wrist-to-floor measurement while standing at attention and your wrist-to-ground distance at ball impact.

    The club-head lie angles are known for the irons and fairway woods as well as the length of one side of the right triangle based upon your mathematically factored wrist-to-ground distance at impact. This gives us the measurement of two angles and the length of one side. We then use trigonometry to solve for the hypotenuse or club length. This is somewhat oversimplified as we factor in shaft deflection and numerous other factors. The fitting formula that we developed produces the ideal golf club length for anyone regardless of height or arm length.

    Why Conventional Custom Fitting Does Not Work


    • Free Shipping on all purchases over $100 USD within the Continental USA.
    • You can purchase your items using any of the options listed during checkout.
    • Big purchase? If you live in the USA choose Shop Pay at checkout to pay in full or split your purchase into 4 equal installments. Learn more and prequalify during checkout!
    • You will receive an email from us with your tracking number.
    • Ohio residents will be charged 7.25% sales tax.

    International Ordering

    • Free International Shipping on all purchases over $1,000 USD.
    • We ship worldwide and we cover the brokerage/clearance fees.
    • Import duties and taxes are the responsibility of the customer and will be collected by the carrier at time of delivery.
      • If these taxes are not paid your order will be shipped back to us and we will deduct from your refund the cost of shipping both ways and the import duties/taxes charged to us.
      • Not sure if you will need to pay import duties and taxes? Check with your local customs office for estimated duties/taxes, or use this link https://www.simplyduty.com/import-calculator/ for an estimate in your currency.

    Return Policy

    Fully try-out our golf clubs at your home course and at your convenience for a full month. We feel that to truly evaluate a set of golf clubs to determine if they are right for you takes time; and hence, our 30-day return policy (does not include Used/Demo golf clubs, Accessories, or Special Orders). To our knowledge we are the only golf club manufacturer in the entire industry who offers a full money-back return policy on golf clubs after they have been played which should tell you volumes about our commitment to our customers.

    If you are not completely satisfied you may return your golf clubs within 30-days of receipt for a full refund of your original purchase price (no hidden fees or re-stocking charges). A return authorization must be obtained before we can accept a return of merchandise. Contact us for this authorization on-line through the Contact page of this website. Shipping/handling charges are not refundable. All contents listed on the original Packing Slip must be included for a full refund. Return shipping charges are the responsibility of the customer. Our return policy is only valid once per customer. Any alterations to the original golf club voids this policy.

    If shipping from outside the USA make sure to show that the country of origin is the USA and is a return of USA manufactured goods on the customs form. Also, be sure to make clear that you (the shipper) are responsible for all shipping charges and any brokerage/storage/handling/duties and taxes incurred. We will not accept any return package where a payment is due - the shipment will be returned to you at your cost. Any charges incurred by us will be deducted from your refund.

    Order Cancellations

    If you cancel your order prior to it being shipped your refund will be subject to all credit card processing fees assessed which will be deducted from your refund. If you cancel your order after it has shipped you will have to return it to us at your cost. Once we receive the returned order your refund will be subject to all credit card processing fees assessed plus our shipping cost to you which will be deducted from your refund.

    Limited Warranty

    We warrant our golf clubs to be free of defects in material and workmanship for a period of one year following the original ship date. We will, without charge to the original purchaser, repair or replace the club if it proves to be defective during normal use within this period (normal use does not include misuse or abuse and the associated damages ie: dents on the top, side, rear, or sole of a wood club-head). This does not cover grip or cosmetic wear and tear due to normal usage. Any alterations to the original golf club voids this warranty.

    Customer Reviews

    Based on 18 reviews
    Juan M.S. (Newburgh, US)
    One Iron Golf

    Wonderful clubs. They are in proving my game. I'm done 1 handicap since I started playing with the irons. I love the clubs.

    Brad T. (Dallas, US)
    Great clubs, better customer service

    Pretty excited when they arrived, I won’t lie. Bought a full set of the demo irons. I’ve played with them 3 times now since having them for a couple weeks. Already hitting much better. Honestly, I haven’t used my long irons for years because I just couldn’t hit them worth a hoot.

    Been hitting these pretty good. My approach shots have been straighter as well. Still have to work on distance, lol, but the are straighter. Had an issue with one of the clubs while playing and I sent an email while I was on the course. The owner actually answered me back right away and had a new club being sent FedEx to me the following Monday.

    To make the point more valid, the set I purchased was as is with no warranty, but they never blinked. Sent me the new club right away. Love the clubs and love the customer service. In a day and age where customer service is lacking in many industries, these guys get it! Thanks One Iron Golf!!

    Harold H.,.J. (Natrona Heights, US)
    H. Huff

    I like the feel of having the same swing on all the irons . The grips are phenomenal feeling and help control the swing .

    Austin H. (Petaluma, US)

    Beginner golfer here. Heard about single length clubs and the idea made sense that using one length would get me to the best swing possible as fast as possible. Seems to be the case! They all feel fantastic. Love the grip on them and they were BARELY used. You wouldn’t suspect at all that I bought used clubs. Amazing 10/10

    Paul E. (Richland, US)
    Used/Demo 1 irons

    Recently purchased 5-PW irons. Still adjusting and unlearning habits from prior clubs, but so far really like them and am confident they will result in more consistency. No issues with the clubs being used/demo. Order was delivered in good time and customer service has been helpful and timely. Highly recommend!

    Mike V.
    1 Iron Demo Clubs

    So far I am loving the change to the 1 Iron clubs. I picked up distance on all my irons so still getting used to that but overall very satisfied with the purchase.

    Mark O. (Bradenton, US)
    Struggling with them

    Still trying to get used to

    Hi! It takes time to become fully acclimated to any set of new golf clubs, especially a set of single-length clubs. With single-length clubs you must ingrain a new posture and swing. We suggest 4-5 trips to the range before playing a round of golf, and not playing with your previous set while becoming acclimated. Here are some tips: https://1irongolf.com/pages/how-to-play-your-new-1-irons. There are many more tips on our Golf Tips page. Please let us know if you have any questions!

    John K. (Fort Myers, US)

    Used/Demo 1 Irons

    EUGENE C. (Indianapolis, US)

    Used/Demo 1 Irons

    Michael M. (Perth, AU)
    1 demo clubs

    Clubs are in excellent condition. Still finding my feet with them but sure I will eventually master them. Well worth the money.