Premium ABS golf shaft extension extender The 88mm extender suits iron putter, the 102mm extender suits wood putter High strength, lightweight and durable Universal fit, you can adjust it by using tape to increase the size or sanding down to reduce size to fit Great spare repair replacement gear accessories for golf sport Specification: Material: Environmental-friendly ABS Length: Approx. 102 mm/4 inch Two Ends Inner Diameter: Approx. 6.8-7mm/0.27-0.28 inch, 13mm/0.51 inch Color: Black Package Includes: 10 Pieces Golf Shaft Extension Extender : Not including the golf putter. Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!