Increasing the head weight and adjusting swing weight Firm and durable to use, ensures a long time service Perfect fit for King F7 driver head, 2 options, 6.5g and 12g are available The weight screw is made to maintain a good sense of comfort in use for everyone by changing the weight of the head Great golf club accessories replacement for golf players Specification: Material: Alloy Color: Orange Gram: 6.5g 12g Golf Weight Diameter: Approx. 21 mm / 0.83 inch Thread Diameter: Approx. 5 mm / 0.2 inch Compatible with: King F7 Package Includes: 1 Piece Golf Weight with Screw (4 Pack) Note: Due to the differences between different monitors, the picture may not reflect the actual color. There is 2-3% difference according to manual measurement, please check the size carefully before you buy the item. Thanks!