Nice gift for the bike and for you.<br /><br />Features:<br />Aluminium alloy material? durable to use.<br />Easy to install and convenient to replace.<br />High seal and integrate design.<br />It is useful for bicycle lovers.<br /><br />Specifications:<br />Material: Aluminium Alloy<br />Color: Gold? Red? Blue? Green? Black(optional)<br />Inner Diameter: 30mm / 1.18in<br />Outer Diameter: 50mm / 1.97in<br />Item Weight: 124g / 4.39oz<br />Package Size: 17.5 * 12 * 4cm / 6.89 * 4.72 * 1.57in<br />Package Weight: 125g / 4.41oz<br /><br />Package List:<br />1 * Bicycle Headset<br><img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-10-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-5-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-6-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-2-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-7-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-4-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-3-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-9-b5d3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/Y/Y0407G/Y0407G-1-b5d3.jpg" /><br>