G-FORCE Racing Gear Pro Series Cam-Lock belts are the top shelf driver restraint system. Built with proprietary PolyTek low-stretch webbing for elongation control, all Pro Series harnesses meet a new standard of test records that rival anything in the industry. The Cam-Lock buckle has funnel style receivers to make engaging the belts a snap, made from ultra-light magnesium, releases with a ¼ turn, and is more comfortable due to each belt being able to rotate 40 degrees up and down and 10 degrees in and out to conform to the driver’s body.