2pcs Fish tank reptile 3D foam rock simulation background plate board aquarium "Dragon Rock" style All models size length 60x45cm (23.6'' x 17.7''), thickness 2~5cm Made of form material, durable, non-toxic, and no influence on the PH value in the water. All the paints are made of the environmentally friendly materials. Easily cut by the knife and convenient to stick on the glass tank by silicon glue. The background easy to broken, only sell 2pcs together in 1 order, if you want 2pcs with different color, leave me message when place order