Durable construction - This tool is built from robust materials and designed for long life, even with frequent use. It serves as a bicycle crank puller and bottom bracket tool, and is compatible with cassette removal tasks. Effortless disassembly - Ideal for indoor cycling bikes, it makes removing and servicing the crankset and bottom bracket easier. It is compatible with common bicycle crank pullers and cassette removal tools. Reliable materials - Made from sturdy materials that resist damage, this tool provides reliable performance and long-term use. It works as a bicycle crank remover and pairs with a bicycle chain tool. Secure mounting - The square-hole design ensures secure attachment to the crank axle and helps prevent slipping during use. Suitable for crank tooling and freewheel removal applications. Typical applications - Maintenance at home on indoor cycling bikes: remove cranksets, service bottom brackets, or perform related adjustments. - Workshop use on road and mountain bikes: crank extraction, bottom bracket servicing, and compatible cassette/freewheel tasks. - Professional shop scenarios where secure mounting and reliable removal are required for crank, bottom bracket, or cassette-related work.