Spin Doctor RI Reverse Groove Inserts 250 - 400% more backspin Instantly! Quantities:8 Testing has shown an average

Testing has shown an average of 6-8 yards increase in carrying distance with many players seeing double-digit gains

If you have never been able to spin the ball

The replaceable Spin Doctor Diamond insert will give you the confidence to go for the flag from any lie

The 9 raised ridges of the exclusive Reverse Groove Technology impart 250 - 400% more backspin than anything else on the market

Ultralight shaft (95g) designed to deliver explosive power and distance

Spin Doctor RI Reverse Groove Inserts 250 - 400% more backspin Instantly! Quantities:8 Testing has shown an averageSpin Doctor RI Reverse Insert, For the Spin Doctor RI Wedge. Spin Doctor RI Reverse Grove Insert, is a replacement for the Spin Doctor RI Wedge Amazing Back Spin, just add it to your club face and watch it come Spinning back. The grooves come forward to grip the ball and stop skidding increasing grip and RPM on the ball. The 9 raised ridges of the exclusive Reverse Groove Technology impart 250 400% more backspin than anything else on the market. With