100% Band and high quality. Easy to install, reliable quality that guarantees stable and excellent performance. Do not blindly replace the bottom bracket bearing when there is abnormal noise on the bottom bracket. Normally, you only need to remove the chainring and crank, and perform a careful maintenance. Add a BB30 gasket (not included) for better protection and use. product. The crank tool is extruded statically, which does not damage the crank . Dimensions: Chainring tool, diameter 41.25mm x 26.5mm, weight 88g Crank tool: Ejector pin 41mm long, thread diameter 18mm, ejector block 18.5mm long, thread diameter 22mm, weight 83g per set. bottom bracket noises occur. Do not blindly replace the bottom bracket bearings. Typically, you only need to remove the chainring and cranks, perform a thorough maintenance, and add the included BB30 spacer. The tool is made of stainless steel with a T6 heat treatment for increased strength and . The crank tool uses static extrusion to prevent damage to the crank axle. Color: Silver Material: Stainless Steel Package Contents: 1*Bike Crank Removal Tool kit Only the above package content, other products are not included. Note: Light reflection 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.