Products made of 100% natural to accommodate populations of small invertebrates as well as micro-organisms to consume and break down your pet's waste. These populations, which are also referred to as the “clean-up crew,” can include terrestrial isopods, springtails, earthworms, centipedes and various beetles, depending on the habitat type, that comes from rainforest to desert environment. The purpose of this clean-up team is to break down the waste caused by your pet, which eliminates manual cleaning and also prevents bad odors.