PREMIUM MATERIAL: High-strength alloy material, durable, rust-resistant COMPATIBILITY: The fully threaded rod has good compatibility with most types of bicycle hubs EASY TO USE: Simple and quick disassembly, excellent accessory for mountain bikes and road bikes DELICATE: Thanks to the sharp turns and precise dimensions, it is easy to fit the bicycle hub and will not damage it. Product Name: Lathe Base Tools Weight: about 182g/set Application: Ball hub base and bearings with conventional slot lock structure.