Type: FishAquatic Decorations Type: OrnamentsWeight: about 90gType: Aquarium OrnamentPractical and durable home using product.Increase oxygen levels, lower CO2 and raise PH.It is an important instrument to successfully keep aquatic fish for respiration process.Durable, washable and sintered by high temperature.Creates bubbles in fish tank while attached to an air pump(air pump is not included).Creates water currents and dazzling underwater scenes.Perfect accessories for better life.Green resin, non-toxic, safe for use.Quantity: 1pccolour:Black, yellow, redMaterial: Resinsize:Bottom width: 7cmHeight: 5cmTop width: 3.7cmPackage Contents:1 x Fish tank simulation small volcanoOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.