Features: The red/blue/gold/green ring weight can be used on TaylorMade Standard RBZ series Driver and Woods,It also can fit the RBZ stage 2 ,and SLDR driver and woods. Note: The RBZ2 series driver usually with the gold ring, SLDR driver series with blue ring, but the screw are same). Installation requires a T20 security bit wrench. Colour:Red,Blue,Gold,Green Material:For 2g,4g,6g Stainless Steel,For 8g,10g Tungsten Steel. Weight:2g 4g 6g 8g 10g. Dimension:Diameter:Approx.0.35"(9mm),height(in proper order):Approx.0.31"(8mm),0.43"(11mm),0.75"(19mm),0.47"(12mm),0.47"(12mm). .