【UPGRADED DURABLE RUBBLE】: Wheel chocks adopt an upgraded version of premium rubber, and use nylon-enhanced technology. Which is twice as strong as ordinary rubber. Unlike similar products that will slip, crush, oxidize, tear or break, these wheels are more solid and durable. | 【SPECIAL DESIGN】: Tire chocks the overall use of a triangular design with ribbed and textured at the bottom. Make the product grip and friction stronger. It can be in place with just one quick step, no need for hammering, heavy blows, and other tired actions. People say that this special design does not have to worry about being squashed even on a wheel ramp or a smooth garage floor. | 【CONVENIENT to CARRY】: The vehicle wedge avoids the traditional hard-to-grip and easy to rust and bend steel rings. Instead, there is a high-quality rubber handle that can be used in pairs with ropes. So that the two-wheel-bearing housings can be kept together and easily pulled out. The compact size and sturdy handle make it more convenient to carry, use and summarize. | 【ADAPTABILITY】: Leveling Blocks are suitable for RVs, campers, trailers, cars, trucks, and small airplanes. Wheel chock can avoid the danger of rolling and make your travel safer. The feature of versatility makes it possible to carry a limited number of tire gears and can be used in a variety of places. | 【SIZE and SERVICE】: The product size is 7.9 x 5.9 x 4 inches, and weighs 3.5 pounds. There are 2 packs and 4 packs in quantity. If you have any questions after purchase, you can consult, and we will reply and solve them within 24 hours.