DescriptionThey can work perfectly with any bolt on single or multiple chaining that does not have threaded standoffs. Quality Material. Made from quality Aluminum alloy material, lighter and stronger than simple aluminum alloy.Feature- Color: Black. - Material: Aluminium Alloy. - Size: 1.19 x 0.84 x 1.19cm. - Material quality aluminum alloy material, after CNC machining, light weight, high strength. - Surface by oxidation coloring, will not fade in a very long time. - Screws suitable for double-use chain disc, does not apply to other kind of disc. - Approx height suitable the tightly and functionally material very durable lightweight easy use colorful style personality modification.