The Exo Terra water bowls are made from non-toxic resin and are very sturdy, making them difficult for larger reptiles to knock over. They feature a natural and realistic rock texture on the outside, as well as a soft, non-gritty, porous surface on the inside. The bowls are coated to prevent the growth of harmful bacteria and to allow for easy cleaning. The natural color allows for easy integration into desert, tropical, or other types of terrariums. Smaller reptiles, amphibians, and insects can easily escape through the safety steps on the inside of the bowl, preventing drowning.