Environmentally friendly materials: made of advanced resin, aquarium decorative rock will not hurt your fish pet. No pollution, no radioactive. Professional equipment: equipped with two silicone suction cups and two adjustable lines, aquarium rock can be suspended in a variety of height. Easy to use --- rock natural light beautiful. They float in a misty and charming way. This means less surprises to make sure your anti-gravity landscape remains sticky. Non-toxic and safe fish - rocks can be put together in whatever form you like. And because Rocks are designed to be tied together rather than glued, all aquatic pets are safer. Wide range of applications: designed for viewing aquariums and fish tanks. How to use: Keep the fishing line on the suction cup. Paste the suction cup at the bottom of the tank. Note: Please note that the item can not fall off. Just be careful to put it in the water and then it will be suspended. In this fabulous world, filled with stunning floating mountains and creatures of luminous flora, aquatic life on the land dominated. It's not Pandora's land from the movie "Avatar", which may be the landscape of your aquarium.