The Ezi-LockOdour Cat Litter System Natural Mineral Zeolite Pellets is a litter that is designed to be used in conjunction with the Ezi-LockOdour Dual Layer Cat Litter System. This litter system uses these naural mineral zeolite pellets which have micropores to help dehydrate moisture while allowing liquid to pass through to the absorbant pad below. The Ezi-LockOdour Cat Litter System Natural Mineral Zeolite Pellets have been shown to leave an 11 times smaller waste footprint than paper pellets and only need to be changed once a month. They come in a 2L bag. - Achieves superior odour control - Dehydrates and locks in odour - Comes in a 2L bag - Results in a smaller waste footprint than paper pellets - Last up to a month