1Aluminum Alloy Material: The bike headset spacer set is made from premium eco friendly aluminum alloy, ensuring rust resistance and durability for long lasting performance. 2Superior Craftsmanship: The aluminum alloy bike fork spacers are exquisitely crafted, cut and have a glossy surface to fit well on your bike, you can choose with confidence. 3Multiple Applications: Bike headset spacers can be applied to 28.6mm front forks and most bikes like mountain bikes, road bikes, fixed gear bikes, etc., easy to install and replace. 4Lightweight and Portable: This bike front fork spacer is light in weight and small in size for easy storage and portability, and you can even take it with you for a rainy day. 5Practical Accessories: These bike handlebar headset spacers can be used as accessories to replace worn or damaged original parts, making maintenance no more worry.