Package contents: product contains a chain rivet for bicycles, which is compatible with a variety of chain widths. Easy to use, with extra long lever and high-quality threaded bolts. Product material: high-quality cast steel body and comfortable plastic handle for durable performance. This professional bicycle chain rivet tool is ideal for shortening and riveting bicycle chains. Product design: precise chain rivet with centing and locking screw for effortless separation and riveting of the bicycle chain. Product features: refined processing of carbon steel, general galvanic heat treatment, exquisite craftsmanship, high quality. Wide application: this professional bicycle chain rivet tool is ideal for shortening and riveting bicycle chains. It offers you the ability to precisely adjust your bike chain and ensure it works smoothly.