Litter Pearls Micro Crystals are Soft On Paws making them ideal for cats with tender paws. The small sand-like silica gel crystals absorb urine on contact plus dry feces making it easier to scoop. Very easy to maintain. 70% Less Landfill Contribution compared to clay litters. One bag will last one cat one month! Safe for Cats. Fragrance Free 99.9% dust free and non-alergenic. No Clumps to Remove.