Scientific principle design: Leveraged operation enables dismantling chains with minimal effort, saving time and energy with an efficient tool. Solid and long lasting: Constructed from hardness alloy steel for wear resistance and durability; reliable grip on chain links facilitates easy installation and removal. Nut locking ease: Simple nut fixation with hexagon nut locking and easy chain ejection for user friendly operation. Multi functional chain breaker: Suitable for removing chains on different types of motorcycles and ATVs; compatible with various chain sizes for greater convenience. Use scenarios On road maintenance for a sport motorcycle, where quick chain removal is needed to service or links. ATV maintenance and chain replacement, using the tool to remove and reassemble the chain efficiently. Workshop use across multiple bikes and models, handling different chain sizes with a single, reliable tool.