Features1The lock ring tool is designed to make your life easier. 2It uses a 1in base, good for installation on a wrench or stock vice, and you can easily remove the cassette without removing the cone and lock nut. 3It has a 12 spline design and can be used for SRAM, for SunRace, for Chris King and other cassette lock rings and some disc brake lock rings. 4Designed to remove and install the cassette lock ring from the hub. 5Professional manufacturing, stable performance and high reliability.SpecificationItem type:Freewheel Repair ToolMaterial: stainless steelColor: blackCylinder diameter: Approx. 4mm/0.16inSquare diameter: Approx. 8.5mm/0.3inDiameter of 11 teeth: Approx. 24mm/0.9inNut diameter: Approx. 23.5mm/0.9inWeight: Approx. 64gRecommended use: Bicycle maintenancePackage List1 xFreewheel Repair Tool