Features： 1、Accurate fitting, integrated molding, firm and not loose against holes. 2、The surface has been anodized, smooth and can prevents abrasion damage. 3、Made of fine quality aluminum alloy, firm, wear-resistant and long using time. 4、Easy to install and use. Specification： Install on the center lock hub to enable it to install a six-pin disc. Features: Accurate fitting, integrated molding, firm and not loose against holes. The surface has been anodized, smooth and can prevents abrasion damage. Made of fine quality aluminum alloy, firm, wear-resistant and long using time. Easy to install and use. Specifications: Color: black, gold, blue, red (optional) Material: aluminum alloy Item size: 52 * 18mm / 2.0 * 0.7in Center distance: BCD44mm Package size: 55 * 55 * 20mm / 2.2 * 2.2 * 0.8in Package weight: 30g / 1.1ounce Packing List: 1 * Centerlock 6-hole Adapter Package List： 1 * Centerlock 6-hole Adapter