OzPro Suck’it Crystal Cat Litter locks in urine & odour and allows the moisture to evaporate after a few minutes to ensure complete dryness that leaves no residue at the bottom of the litter tray. It also dries up feces, which reduce odour and makes scooping easier & cleaner. OzPro Suck’it Crystal Cat Litter is always dry and ready for your cat to use it over and over again, yet still last longer than any other cat litters.