Can be used under a glass table or a childrens plate. For holding cell phone, aquarium decoration, string light and craft project. Perfect for replacing worn suction cups. Soft silicone rubber resists crushing and wear. If the suction cups are deformed, soak them in warm water for about 2 minutes. Suitable as shock absorbers for transporting flat glass and mirrors. Secure hold to separate and cushion parallel surfaces in a horizontal position. It can be adsorbed on a larger area than the suction cup, the surface is smooth ceramic, stainless steel, glass, mirror, refrigerator, machine washable, metallic paint. Other smooth surfaces can be used. If the surface is loose or uneven, it is easy to enter the air from the outside, which can easily remove the suction cup. Make sure the adsorption surface is clean. The suction cup is dirty. After cleaning, soak it in warm water for about 1 minute to restore it to its original shape and use it again.