Features 1、The headset is made of quality aluminium alloy material, anti‑rust, sturdy and durable. 2、Lightweight but high strength, fits perfectly with your bike headset. 3、The cap is good for keeping dust and water away to lengthen the durability. 4、Can prevent the bearing from over‑abrasion and make it rotate freely. 5、Useful accessory for replacing old headset of bike. Features: The headset is made of quality aluminium alloy material, anti-rust, sturdy and durable. Lightweight but high strength, fits perfectly with your bike headset. The cap is good for keeping dust and water away to lengthen the durability. Can prevent the bearing from over-abrasion and make it rotate freely. Useful accessory for replacing old headset of bike. Specification: Item Type: Bike Headset Material: Aluminium alloy Assembly height: 7.5+5.3=12.8 Suitable for most bike with 56mm head tube and 28.6mm front fork (55mm head tube can not use) Package List: 1 x Bike Headset Package List