Bore Diameter: 10MM, Outside Diameter: 24MM, Width: 9MM". Made of Stainless Steel, better weld ability and resistance to than the regular steel. The two-piece design makes installation simple. The split collar can be disassembled and reassembled anywhere along the shaft without needing to remove other components or having access to the ends of the shaft. Suitable for assemblies, motor bases, machine tools, drive shafts, agricultural implements, equipment, and paper and steel mill equipment, the automotive industry, the manufacturing industry, the hobby craft industry and many more. Color: As Shown Material: Stainless Steel Package Contents: 2*clamping locking ring 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.