The Lowry Hockey Helmet Screws are great backup or replacement screws for attaching visors, cages, and full shields. The long screw is for visors using a spacer kit and the short screws are for attaching J clips or top hinge clips. The dome snap is used to fasten cage or shield chin straps to the side of the hockey helmet. The screws are designed to fit any hockey helmet. Be sure to get a couple of backup screw posts so your installation is successful!