This headset spacer is made of high-quality aluminum alloy material, sturdy and practical to use. They are lightweight and easy to install, having smooth surface and exquisite workmanship. 4 different sizes into one packs could fit for your demand and meet different needs. <br/>Features:<br />Made of high-quality aluminum alloy material, eco-friendly, sturdy and practical to use.<br />Lightweight and easy to install, having advantages of smooth surface and exquisite workmanship.<br />Perfectly suitable for 28.6mm front stem fork of MTB mountain bike, road bike etc.<br />4 different size(5mm/10mm/15mm/20mm) into on pack, they could fit for your demand and meet different needs.<br/>Specifications:<br />Material: Aluminum Alloy<br />Color: Red, gold, silver, black, blue (optional)<br />4Pcs/Set Size(Height): Approx. 5m/10mm/15mm/20mm<br />For 28.6mm bicycle front stem fork<br />Item weight: 32g / 1.1ounce<br />Package size: 100 * 50 * 30mm / 3.9 * 2.0 * 1.2in<br />Package weight: 36g / 1.3ounce<br/>Packing List:<br />4 * Bike Headset Washer<br />