Quality Material The car suction cup is made of nylon, PC, ABS, PVC, and metal hooks. Features a high-strength D-shaped buckle that is sturdy, durable, wear-resistant, and offers strong load capacity. The professional PVC suction cup uses advanced materials for ultra-strong suction, providing excellent aging and corrosion resistance. Reusable and ideal for situations where drilling is not possible or desired. 4 Suction Cup Anchors with 8 S-Hooks This suction cup set is designed for heavy-duty use. Each suction hook supports up to 22 kg (48 lb). Can be used as a car luggage strap tensioner, ideal for outdoor trips, camping, and truck transportation. Package includes: 4 D-shaped suction cups and 8 S-shaped hooks. Easy Installation Install quickly and easily without screws. Pull the joystick onto the suction cup, place it on a clean, flat, and dry vehicle surface, then press down the joystick. Will not damage your vehicle. Suitable for Smooth Surfaces Ensure both the vehicle surface and suction cup are dry before use. These suction cups work on glass, car bodies, mirrors, tiles, and other smooth, flat surfaces. Not suitable for uneven or textured surfaces such as patterned tiles. Multiple Uses Ideal for securing luggage, awnings, tents, tarps, and sun sails. These car suction anchors are perfect for moving, delivery, camping, boating, surfboard transport, and more.