Porpoise's PU Backgrounds are made of polymeric isocyanate and polyurethane foam resin. PU Backgrounds are especially realistic looking and add dimension to your aquarium tank. We welcome custom dimension/shape/design requests. Our designers can use a photo or an idea that you supply in order to provide you with a unique product. A 60 x 45 cm PU Background weighs about 1 kg. PU Root Backgrounds are generally about 10 cm thick, while PU Rock Backgrounds are generally about 5 cm thick.
