Double-sided suction cup, easy to use, easy to install, is the best choice for home decoration, fish tank and furniture installation. Features: 1. Easy to install and remove, it can be installed by squeezing the air and pulling the suction cup. 2. Suitable for installing aquarium accessories, suitable for both saltwater and freshwater aquariums. 3. Excellent shock absorber, anti-slip and shock absorption on smooth furniture surface. 4. Christmas decorations, hanging garlands, artificial vines, etc. on the suction cup. Specifications: Diameter: 30 mm Material: PVC Colour: transparent.