Quality material The car suction cup is made of nylon, PC, ABS, PVC and metal hooks. High-strength D-shaped buckle, sturdy and durable, wear-resistant and strong bearing capacity; the new professional PVC suction cup adopts new materials, ultra-high strength suction, aging and corrosion resistance, and can be reused. If you can't or don't want to drill, the suction hook is ideal. 4 suction cup anchors with 8 S-shaped hooksThe suction cup set is also suitable for heavy-duty applications. Can be used as a fixed-use car luggage belt tensioner, suitable for outdoor trips, camping, trucking. The package contains: 4 D-shaped suction cups and 8 S-shaped hooks. Easy Installation: The suction cup can be installed quickly and easily directly without screws. Simply pull the joystick up on the suction cup, lay the suction cup down on a clean, flat, dry vehicle surface, then press the joystick.It will not damage your car. Suitable for very smooth surfacesBefore use, make sure the surface of the car and the suction cup are dry. Car suction cups can only be used on glass, car surfaces, mirrors, tiles and other smooth surfaces. Not suitable for uneven surfaces, such as patterned tiles. Multiple uses Suitable for securing luggage / awnings / tents / tarps / sun sails, so these car suction anchors are ideal for moving, delivering, camping, boating, surfboards and much more 12.86*12.86*3.63cm