- Improved handle and grip: the handle is longer for better leverage; the plastic end is non-slip and protects the hand; the front end uses medium/high-quality chain links for a durable, easy-to-grip tool that reduces the chance of injury. - High-quality combination set: includes a chain whip and an auxiliary key; constructed with hardened pins to hold the chain securely in place; designed for a comfortable, secure grip during use. - Smooth, reliable disassembly: the disassembly direction of the fly cover matches the flywheel rotation, allowing secure fixation for smooth removal. - Compatibility and usage: designed to be used with a cassette locking tool (not included) to remove cassettes from hubs; the sprocket remover can also be used to tighten screw-freewheels; suitable for 8, 9 and 10 speed cassettes; when removing the flywheel, fix the wheel to avoid damage. - Use scenarios: - Replacing a cassette on 8/9/10-speed hubs for road or mountain bikes. - Servicing flywheels or sprockets on hubs during home maintenance. - Routine wheel hub maintenance requiring secure chain whip and sprocket removal.