Elimates Odors - Maximum Odor Control Low Dust Litter - dust removal is an important part of the Ultra Pearls production process, so your litter box and room stay dust-free and clean Gentleness Assured - Silica Gel crystals are non-toxic and safe for pets and people, and unscented crystals are great for sensitive cats Super Soft on Paws - Silica Gel micro crystals provide maximum comfort on cats' paws and powerful clumping for easy scooping and a refreshing litter experience Litter Stays Fresher, great in single and multiple cat settings Super absorbent sand-sized crystals.