Product Features GOLF CLUB GROOVE SHARPENER - Now you can get an instant improvement in your game with exceptionally well golf grooved irons. Golf club groove cleaner Works by sharpening the rolled over metal edges that have collapsed in the grooves of your club. Have the same level of advantage used by top PGA professionals. 6 CUTTER HEADS GOLF CLUB GROOVE CLEANER- 3 for U type club grooves and 3 for V type grooves. Perfect for Adams, Callaway, Cobra, Cleveland, Nike, Ping, Taylormade, Titleist, Wilson and and other golf Leading Irons, including Sand Wedges, Lob Wedges, Gap Wedges, Approach Wedges, and other Golf Utility Clubs. HIGHEST QUALITY METAL GOLF GROOVE TOOL CONSTRUCTED, made from high grade precision tool vacuum heat treated steel, measuring 60 on the Rockwell hardness scale, for maximum durability and cutting effectiveness. This golf groove sharpener tool is precision ground and engineered to exacting tolerances to ensure that it does not compromise USGA rules regarding groove width and depth. INSTRUCTIONS ON GOLF CLUB RE-GROOVING TOOL: Simply run the sharpener down the grooves 45 degree angle and without applying too much force strokes on each groove. clean the club and apply 1 more drawing stroke with little more force. Repeat sequence depending on how much particles of dirt, sand & grit within the grooves have built up over time. GOLF GROOVE TUBE PACKAGED IN CLEAR PLASTIC SAFETY TUBE FOR EASY STORAGE and shipped inside protective foam bag for ultimate cover protection in golf accessories. 100% MONEY BACK GUARANTEE, for the Lifetime of the Product, we offer a no-questions asked full money back guarantee!