After years of research and testing we are proud to offer the ultimate putter in the golf industry. Designed with extreme counterbalancing, our face balanced putter head is heavier than standard for the highest level of clubhead stability and consistency throughout the stroke. The clubhead is then counterbalanced with a heavier grip than a standard putter so that the center of gravity is moved closer to the player’s hands which promotes the larger muscles of the shoulders in making a pure and smooth pendulum putting stroke for pro-level putting. Our Big-O Putter is not method specific and will drastically improve your putting regardless of your preferred putting method.
To optimize your stroke stability through proper counterbalancing you will want to measure your current putter and then order the next size upBig-O Putter. The extra club length should extend beyond your wrists when you grip the club to ensure optimum counterbalancing.
Sizes: 35”, 36”, 37”
Effective lie angle: 72º
Loft Angle: 3º
Clubhead weight: 385gms
Grip weight: 155gms
Includes Embroidered Black Head Cover
Start sinking putts from all over the green and watch your friends' jaws drop!
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.
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).
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
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.
You can purchase your order using any of the options listed during checkout. If you would rather pay with a check or money order, contact us for instructions through the Contact page of this website. This option is available to USA residents only.
Since all orders are custom built your credit card will be charged when production begins (within 24 hours).
On the shipping date you will receive an email with your tracking number.
Ohio residents will be charged 7.25% sales tax.
We ship world-wide.
International shipping charges include brokerage/clearance fees.
Import duties and taxes are the responsibility of the customer and will be collected upon 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. Check with your local customs office for estimated duties/taxes.
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.
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.
$400 USD off FULL NEW Sets of Woods + Irons thru Cyber Monday! $100 USD off of all NEW sets of irons + HUGE holiday savings on Used/Demo sets + holiday deals on the Dark House Driver and Big-O Putter + more deals through December!
I left my 39° Iron on the fringe and the group behind decided they wanted more than me… I reached out to 1iron, gave them my specs and decided I wanted to add a 5 wood to the 3 & 7 I already had. I expected it to take 10 days but they arrived in days. I was playing again the next weekend. Thank you 1iron!
Very accurate and consistent. About a club longer than the standard 1 iron set. For newer single length players, take the time to adjust and get used to them.
By the second or third week you will see distance and trajectory improvement.
One big key is trying to not over swing. Once you find that rhythm and tempo the Pro-line irons do all the work. You have to put the time in. Don’t make the mistake of going right to the course the first time you get them.
The 1Iron Golf Compony has great support , There web site is a great resource for tips , advice and and specifications of there full club line.
The sunglasses seem flimsy so I don't know how long they will last. Definitely worth the $23 though. They are a significant benefit on the golf course, especially this time of year when the sun is lower in the sky and there is more glare.
Hi Joseph, thanks for taking the time to leave a review! We are glad you are enjoying the new sunglasses. We went through very thorough testing of over 50 pairs to come up with this custom design. We used the upgraded rubberized texture to ensure durability and chose the ultra lightweight design to enhance the comfort level after an entire day of wearing them. As a runner and golfer myself, I can attest to the durability and comfort, I've been using them for over a year - and the views, you were spot on, everything is so clear even in low light! Thanks again, and if you change your mind about the stars given in the future as to the durability, please feel free to edit your review anytime. Cheers to better golfing!