The revolutionary Pee-Pod™ is a biodegradable container that fits neatly inside the waste container of the Pet Loo® Pet toilet. When your pet's urine touches the Wee Sponge powder, it solidifies into a gel, trapping liquids and airborne odours. The Pee-Pod™ can hold about 2 litres of liquid. Simply throw out the pod and replace it with a new one every few days. Pee-Pods fit all sizes of the Pet Loo® Pet Toilet. One pack, including 7 Pee-Pods, the Wee Sponge powder and scoop, lasts about 21-28 days, depending on how often your pet uses the Pet Loo® Pet Toilet.