Made from the ground bark of fir trees, Repti Bark is an excellent terrarium substrate for all humidity loving reptiles, as it is able to absorb and release moisture. A three stage cleaning process ensures that all powdered dust and dirt are removed from the substrate before packaging. This all natural product will give your terrarium that realistic tropical rainforest look. Repti Bark is washable and reusable, and will certainly help make your inhabitant species feel right at home.