Features:Brand new and high quality.Sintered by high temperature.Durable & washable.Suitable to be used for oxygen supply in all kinds of aquariums.Through installing an air pump， the correct balance of oxygen and carbon dioxide will be established in the tank and the fish will enjoy a happy and healthy life in the aquarium.Mineral stone is made of mineral material， it effectively create not only water currents but also dazzling underwater scenes.The suction cup is used for fixing the pipe.Material: plastic， mineral stone.Pipe length: about 224cm.Size: 5.5cm x 4cm.Package Included:1 x Pipe1 x Airstone4 x Suction CupNO Retail Box. Packed Safely in Bubble Bag.