Easy to use: Simply place the suction cup flat on the clean and dry car body, and pull the lever to create a very powerful vacuum. Extra strong suction power: The suction cup creates a vacuum and each anchor supports up to 10Kg. Can be used as a car backpack tensioner for fixed use. Multifunctional suction cup: This camping suction cup is ideal for easy fixing of awnings or shade sails. Also ideal for hanging objects in buses, mobile homes and on smooth surfaces in the workshop, garage, kitchen, bathroom, etc. Condition: The only condition is that the suction hooks are clean and dry before use, and that it is a smooth surface without grease. The better the seal, the longer the suction cup sticks to the surface.