It's the upgrade part which instead of star washer, also it would be use unlimited.
Different from star washer, it can avoid breaking the inner tube of fork, carbon fork especially. If you instill the carbon fork with star washer, I think your heart really hurts that your carbon fork will break easily and need to buy another one hahaAlso, it can reuse! Not like the star washer is one-off consumable. It's easy to assembly and disassembly, which you only need to prepare the Allen key 4mm + 6mm. It's an available and economic part that you can consider much more.
- Detail
Material: Alloy 6061-T6
Size: 1-1/8"
Fork tube ID22-25.4mm
Body length: 52mm
Weight: 64g
Color available: Black