A sustainable recycled pelleted paper litter. It absorbs 3x more then clay litter. No baking soda is used, instead an all natural pet safe material is added, safely and effectively eliminating odors. Stop problem of tracking caused by clay, no more litter in the house, remains as should, in the box. Tip: Gradually change from old to new litter. Start by filling litter box with 80% Small Pet Select Cat Litter, then spread the old litter over the top. Your cat will adjust in no time!