Bicycle Six Nail Disc Conversion for Seat Front Hub Adapter Kit for Boost Fork Bearings Disc Brake Hub Gasket Cycling Sports brand new and high quality Features: Mountain bike hubs adapter, sealed bearing bicycle repair and modification accessories. It is convenient and quick to disassemble, easy to change, simple operation, stable and durable. Strong compatibility, close fit without looseness, built-in gasket to prevent scratches. Specification: Type: Bicycle Hub Adapter Material: Aluminum alloy Applications: Mountain Bike Bicycle Modification Features: Bicycle Hub Adapter, Disc Conversion for Seat, Disc Brake Hub Gasket, Bicycle Modification Accessories Dimension: app.4.4x1cm/1.73x0.39in Color: Yellow, Red, Blue, Black (optional) Quantity: 1 Set Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set x Bicycle Hub Adapter