When you're working around or under a potentially body-crushing 8,500-lb truck, play it safe and don't trust just any set of wheel chocks. Go with the best – RhinoGear Heavy Duty Wheel Chocks. Like all chocks, RhinoGear’s are designed to generally keep tires from rolling and as an added layer of safety when paired with ramps or other lifting devices. But RhinoGear chocks are loaded with advanced features you won't find on other devices. Their innovative Core-Trac feet reduce sliding better than any nonskid material on any other chocks. RhinoGear chocks are also made of exceptionally durable high density resin, so you can rest assured they'll be there for a lifetime, making do-it-yourself oil changes and other maintenance safer and easier. The two chocks included in this set are also nested for convenient, space saving storage. Like all wheel chocks, RhinoGear Heavy Duty Wheel Chocks should only be used in pairs on a flat surface. With our incredible low price, there's no reason to continue using inferior, less-safe chocks. Get a couple of RhinoGear chock sets today – a pair for yourself and a pair for a friend or family member! It's a thoughtful, practical gift that will keep your loved ones safe in the garage!