Litter Pearls Micro Crystals are Soft On Paws making them ideal for cats with tender pads. 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 7 lb bag will last one cat two months! Safe for Cats. Fragrance-Free 99.9% dust free and non-allergenic.