Name: aquarium suction cupMaterial: silicon + ABSColor: whiteDimension: mount head diameter 20 mm， suction cup diameter 30 mm Transparent super adsorbed suction cup that can be attached on the fish tank glass surface or other smooth surface. Suitable for: gas hot rod power lines， water pipes， gas bar， oxygen tubes， etc. Note: there are different sizes of clip mount， please purchase according to actual conditions. It is hard to absorb on too big or too small objects. 10 x Suction cup