These small hoops, 10mm wide have a classic "knife and fork" closure which opens and closes easily, never with force or twisting. Dangling cubic in a multi claw set 6mm round and flashes as it moves. Cubic is much more durable and flashy than commercial crystal which scratches easily and becomes dull quickly. That is why cubic is often set in gold, their quality is much superior to crystal. At www.therocks.ca our bling is always cubic, best quality best prices.