Wheel chocks (also called wheel immobilizers or chock blocks) are designed to help prevent vehicles from accidentally rolling when parked, especially on a grade. Primarily for the safety of workers when a vehicle is undergoing maintenance, or being loaded or unloaded, use of wheel chocks can also reduce property damage from accidents and loss from spillage during loading operations. Features - Color: Blue. - Material: PP. - Size: 19.80 x 9.60 x 10.50cm/ 7.78 x 3.77 x 4.13 inch. - Normally fits for trailers caravans motorcycle vehicles, great for forklifts, floor jacks, and household loads too. - Wheel chocks keep your car from moving, PP material provides extra slips resistance. - Work great on shop floors or liftsIntegrated grooves grip tires for added stability. - Professional and practical design with beautiful appearance, easy to carry and use. - More convenient and safe to remove the chock with handle and cord. Package list: 2 x wheel alignment blocks