Porpoise's Soft Resin Backgrounds are especially lightweight, thin, and pliable; only 0.3 cm thick. This series is easy to affix to aquarium walls, and is ideal for small children's tanks as well as larger tanks. Another possible use for Soft Resin Backgrounds is for wall coverings in non-aquarium settings. We welcome custom dimension/shape/design orders. Our designers can use a photo or an idea that you supply to provide you with a unique product. We can also manufacture bulk pieces up to two meters square. A 50 x 28 cm Soft Resin Background weighs 0.6 kg.