Extremely easy to use.Follow the instruction picture and you can complete your work easily and quickly. The latest upgrade, with non-slip rubber gasket, non-slip and durable. A bicycle fork star nut installation tool,works for 7/8,1,1-1/8 inches. The latest upgrade, with non-slip rubber gasket, non-slip and durable.Adopts anodic oxidation and electroplating process, beautiful and practical. Colour:Orange+silver+black Material:304 Stainless steel Size:105x33.5mm Package Contents: 1* flower core driving tool 1* screw 1* mounting shaft 1* sun flower Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.