PREMIUM MATERIAL: High-strength, durable, rust-resistant alloy material COMPATIBILITY: Fully threaded stem has good compatibility with most types of bicycle hubs < p>EASY TO USE: Simple and quick disassembly, excellent accessory for mountain bikes and road bikes DELICATE: thanks to the tight bends and the precise dimensions, it is easy to arrange the hub of the bicycle and will not damage it. Material: electroplating silver sleeve + stainless steel anti-lost component. Size: screw length 156mm, tool outer diameter 28.5mm, bayonet width card slot diameter 4mm Applicable: install/remove the ball of the slot lock structure, bearing hub freewheel base. Disassembly and assembly direction: clockwise disassembly, counterclockwise locking. Features: fine turning, high precision bayonet, strong compatibility, high tough, not easy to rust. Color: silver Delivery quantity: 1 piece Note: Light view price and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm.