【High Quality Material】Our suction cup aquarium is made of environmentally friendly PVC, which is non-toxic, tasteless, environmentally friendly, strong and durable, and has great flexibility and absorption. 【Easy to use】The aquarium suction cup is very easy to install and remove, without having to use other tools. Just keep the glass surface clean, dry and smooth, then stick the suction cup. 【Convenient】Use the aquarium suction cup to fix the heating tube and the cooling tube effectively. water. Our products have been specially designed for aquariums and are the best choice for you. Package content: 8 pieces of environmentally friendly PVC suction cups for aquarium, suction cup diameter diameter: 30mm, inside diameter of the clip: 20mm, color: black. And it fits most standard aquarium heaters, meeting your daily needs. Wide Application: Aquarium suction cup clip - Suitable for saltwater aquariums and freshwater, aquariums, all glass surfaces - You can also use it for stainless steel