【Exquisite Workmanship】- The bike headset spacer is lightweight and easy to install, having advantages of smooth and exquisite workmanship.It is an excellent product. 【Premium Material】- Our headset spacer is made of high-quality aluminum alloy material, eco-friendly, sturdy and to use. It can be used for a long time, cost-effective. 【4 Different size & Color】- There are 4 different size(5mm/10mm/15mm/20mm) into on pack, they could fit for your demand and meet different needs, and available in 4 colors,black, blue, red and silver, just choose the color you like. 【Fit For】-The bike headset spacer is perfectly suitable for 28.6mm front stem fork of mountain bike, road bike etc. 【Guarantee】-We guarantee them all with a product guarantee and promise to offer you the best customer service, if you have any question please kindly feel to contact us.