Catsan hygiene cat litter has a special feature especially developed to match your cats natural needs hygienic white quality grains individual grains of fine chalk and natural quartz sand soak up fluid like a sponge ensuring a pleasant and dry cat tray they inhibit bacteria formation and absorb odours before they can develop catsan hygiene ensures long lasting odour protection making it a real favourite with cats catsan hygienes natural chalk and quartz grains give this quality litter