❀ Steel star fangled nut for anchoring Headsets compressions in steerer. ❀ Make of Alloys steel materials,light weight and Enduring, not easily to deforms.Suitable for bike front fork diameter 28.6mm (1-1/8inch). ❀ Great for road bike,mountain bike. Easily installation and carry. ❀ It's essential component for bike enthusiasts look to upgrades or repair their bike. ❀ Its strong construction ensures it can bear heavy use, providing long terms .