Features: Made of foam material, non-toxic, no bad smell and absolutely no influence to the water. Suitable for use with any reptiles, amphibians, or fish.The board looks and feels like real stone but are lightweight and easy to use. All the paints are made of the environmentally friendly materials.No dissolution in the water, safe for fish. The aquarium ocean wallpaper gives your aquarium much more ornamental value.Used with other aquarium decoration, such as water plants, rockery and so on, the effect will be better. These boards are easy to cut with a standard hand saw and can be joined to cover larger wall sizes.Provides valuable environmental enrichment for your pets as they enable your pets to climb and browse on the walls of their enclosure. Specifications 100% brand new and high quality Material: Foam Dimension: 60 x 45 x 3cm/23.6"x17.7"x1.18" Weight: 240g (appr.) Color: Dragon Stone, Moss Rock Caution: 1.Do not use any soap or detergents to clean the background board. 2.When applying silicon glue to stick the background to glass tank, make sure both surfaces are clean and dry. Package included: 1 x Aquarium Background