One slick little clamp. This Kuryakyn P-clamp can mount to your frame tubes or engine guards. Mounting is very secure because the clamp is secured to the tubing by a flat head screw and the fastener used to attach the accessory.; Chrome-plated stainless steel Works great for mounting Silver Bullets or other accessories to frames, highway bars or handlebars Hinged design makes installation easy Clamp is secured to the tubing by a flat head screw and the fastener used to attach the accessory Clamp has a 5/16" mounting hole