A Moisture Retaining Substrate Made From Natural Bark. Pettex Reptile Substrates Are The Ideal Way To Set Up A ReptileS Home. When You Need To Make Your Reptile Happy And Comfortable There Is A Substrate To Replicate Their Natural Habitat. We Only Use Carefully Selected Substrates From Around The World From Sustainable, Renewable Sources. Ideal For Rain Forest Or Tropical Living Species Requiring A High Humidity Environment, Prefect For Moisture Retention. Heat-Treated To Eradicate Micro Organisms For A Safer Environment. Suitable For All Snakes, Tropical Reptiles, Invertebrates And Amphibians.