2-in-1 design for internal and external snap rings: installs and removes without changing heads. Material: high-carbon steel with a blackened finish; strong, corrosion resistant and long lasting. Spring load: centrally mounted spring with good elasticity that returns naturally, enabling easy one-handed operation. Handle is orange and black two-tone, ergonomic and non-slip. Application: suitable for removing and installing externally placed retaining rings in bicycles, automotive and motorcycle components, agricultural machinery, locks, and other fixed bearings. Use scenarios: - Replacing a snap ring on a bicycle wheel hub or crankset. - Servicing a motorcycle brake assembly or automotive wheel bearing that uses external snap rings. - Repairing plumbing fixtures or agricultural machinery where snap rings secure components. This description stays true to the original design, material, performance, and intended uses.