Ciro patent pending clamp design eliminates ugly pins and hinges used in traditional clamps. Works with Ciro device holders, cup/drink holders, cameras and can be mounted to any 7/8" or 1" round bar. Ciro patented clamp design eliminates ugly pins and hinges used in traditional clamps Can be used to mount Ciro device holders, cup/drink holders, cameras, and more Made from a strong ABS composite with brass threaded inserts