Technology

Gravity Drive™ Insert

The Gravity Drive™ Insert uses advanced elasticity principles to generate more consistent putts. Our patented design combines an exotic thermoplastic, polyethersulfone (PES), with precision-milled 303 stainless steel for unmatched performance.

The PES insert is engineered to gradually increase in thickness towards the edges. This unique design adds more kinetic energy on impact, compensating for the distance normally lost on heel or toe strikes.

Testing the Results

In a controlled test, a golf ball was dropped from 15 inches above various surfaces. The images below overlay 10 tests for each material, showing the average rebound height:

Label 0: Steel face
Labels 1-4: Increasing PES thickness

The thickest PES material demonstrated a rebound height gain of up to ½ inch, proving its ability to conserve energy and optimize roll distance.

How Does This Help?

When a putt strikes the heel or toe of a traditional putter, the ball won’t travel as far. This happens because the ball moves away from the center of mass, causing the putter head to twist and reducing ball speed. With a sweet spot about the size of a quarter, these mishits are easy to make but hard to overcome.

Using our patented Gravity Drive™ Technology, we’ve expanded the sweet spot across the entire insert. By redistributing energy towards the heel and toe, we generate consistent roll distances, even on off-center strikes. The result? More consistent putts and fewer surprises on the greens.

What Does This Mean on the Green?

Our insert is designed to remove inconsistencies when putting from 15-20 feet—the critical range for birdies and par saves.

Real-World Impact

In our testing, a 15-inch drop height produces a ball speed of 2.7 m/s, which aligns with the velocity needed to sink a 15-20 foot putt on a fast green (based on USGA Stimpmeter data).

With a standard steel face, a mishit ½ inch off-center results in a putt that comes up 5-10 inches short. By contrast, with the Gravity Drive™ Insert, rebound velocity increased to 2.6 m/s, rolling the ball an additional 8 inches, ensuring fewer short putts and more consistency.

By precision milling the PES insert to increase thickness toward the edges, we create uniform roll distances across the entire striking area.

What Does This Mean on the Green?

Our insert is designed to remove inconsistencies when putting from 15-20 feet—the critical range for birdies and par saves.

Real-World Impact

In our testing, a 15-inch drop height produces a ball speed of 2.7 m/s, which aligns with the velocity needed to sink a 15-20 foot putt on a fast green (based on USGA Stimpmeter data).

With a standard steel face, a mishit ½ inch off-center results in a putt that comes up 5-10 inches short. By contrast, with the Gravity Drive™ Insert, rebound velocity increased to 2.6 m/s, rolling the ball an additional 8 inches, ensuring fewer short putts and more consistency.

By precision milling the PES insert to increase thickness toward the edges, we create uniform roll distances across the entire striking area.

Maximum MOI for Ultimate Forgiveness

Our putters feature up to 170 grams of tungsten precision-assembled in a machine-milled aluminum chassis. This combination is engineered to deliver maximum MOI (moment of inertia)—a critical factor in maintaining stability and accuracy.

What is MOI?

MOI measures an object’s resistance to twisting. When a ball is struck off-center, the putter tends to twist in your hands, reducing accuracy and roll distance. By strategically adding weight to the heel and toe, we significantly increase the putter’s resistance to twisting, minimizing the negative effects of mishits.

Innovative Design

Using lightweight billet aluminum allows us to position up to 50% of the putter’s weight toward the perimeter, maximizing MOI without compromising balance. Paired with the Gravity Drive™ Insert, this
design creates one of the most forgiving putters on the market.

Proudly Made in the USA

Every Void Putter is CNC-milled, hand-finished, and assembled with care in San Diego, California.

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1. Tungsten Perimeter Weighting

Strategically placed tungsten weighting maximizes MOI for a consistent, balanced stroke.

2. Gravity Drive™ Insert

Patented technology delivers a soft yet responsive feel, ensuring consistent distance control, even on off-center strikes.

3. Hosel Options

Optimize your stroke with toe-hang and face-balanced hosel options designed for both arcing and straight strokes.

4. Precision Construction, Premium Finish

CNC-milled 6061 aluminum body, featuring Cerakote coating for industry-leading durability and a premium finish.

Watch our swing arm test to see the Gravity Drive™ Insert in action. Experience how it delivers consistent results across the entire face of the putter.

Take control of your game. Configure your custom Void Putter today and experience the difference of Gravity Drive™ Technology.

Build Yours Now

Frequently Asked Questions

What's the difference between Face-Balanced and Toe-Hang?

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Face-balanced putters and toe-hang putters are designed to accommodate different putting strokes. Choosing between face-balanced and toe-hang depends on your natural stroke type. Face-balanced works well if you prefer a straight path, while toe-hang fits better for an arc-style stroke.

Face-Balanced Putters: The putter's face points upwards when balanced on your finger. This design is ideal for golfers with a straight-back, straight-through stroke. Face-balanced putters help keep the putter face square to the target line throughout the stroke, making them great for players who prefer minimal arc.

Toe-Hang Putters: The putter's toe points down when balanced, indicating a "toe-hang." This design is better suited for golfers with an arcing stroke. Toe-hang putters allow the face to open and close naturally, making them an excellent choice for players with a pronounced arc in their putting stroke.

How do I choose the right putter length?

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The easiest way to choose the right putter length is based on your height, which works for most golfers:

If you’re taller than 6 feet, a 35-inch putter will usually fit best.
If you’re shorter than 5'6", a 33-inch putter is likely the better option.
For most golfers in between, a 34-inch putter is a great middle ground.

This simple approach will work well for most people. However, if you want to get more precise, consider your posture and putting style:

The ideal length lets you stand comfortably with your eyes over the ball, with your arms hanging naturally.
The right length should also suit your stroke type—whether you prefer a straight-back, straight-through stroke or a slight arc.

If you're still unsure, a professional putter fitting can help you determine the perfect length for your unique setup.

Where can I go to test a Void Putter?

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At the moment, Void Putters are not available in any physical retail locations, but we are aiming to begin distribution soon. For now, the best way to try a Void Putter is to purchase it and take advantage of our 30-day trial period. If you’re not completely satisfied, you can return it for a full refund.

For more details, please visit our Returns/Refund Policy page.

Can I customize the loft or lie angle of my Void Putter?

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Absolutely! We can adjust the loft or lie angle to your specifications. Simply leave your preferences in the order notes when you place your order, and we'll take care of it.

Our goal is to ensure your putter fits you perfectly, so don't hesitate to let us know exactly what you need.

Can I get an arm-lock or broomstick grip on my Void Putter?

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Yes, we can accommodate either an arm-lock or a broomstick grip. Just select the aftermarket grip option when placing your order, and leave your specific grip request in the notes. Please be as specific as possible with the exact model of the grip you want, so we can ensure your putter meets your expectations without needing to follow up for clarification.

What is the lead time? When can I expect my putter?

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Our lead time for putters is typically 2-3 weeks from the time of order. Please note that this lead time is an estimate, and there are several factors that can affect it. If you would like a more precise estimate of our current lead time, feel free to reach out to us directly.

You will receive an email when your putter moves to final assembly, which will include your tracking information. Please allow some time before expecting tracking updates, as our club builder will need to assemble your putter before it ships.

We appreciate your patience while we ensure your putter meets the highest quality standards.