Papai - Nano Anti-Bacterial Cat Litter - Coarse-Grained 3mm - 5KGProfessional odour control, Natural deodorizer, Authentically certified antibacterial cat litter Manufactured with advanced Nano antibacterial technology, releases negative ions constantly non stop, effectively inhibits bacterial reproduction. The antibacterial efficacy is proven to be over 90%, certified by the Hong Kong Standards and Testing Center STC. Long lasting clean fragrance. The pellets are made from natural, mild, non irritating and edible