Kit Kat Sand Classic Lemon 10 Liter An effective and innovative sand that features crystal technology that is effective in absorbing liquids and odors. This sand is transparent and lightweight, and contains crystal grains that help retain odors and effectively absorb liquids. With its refreshing lemon scent, Crystal Cat Litter has a fresh, invigorating scent that helps control unwanted odors in the litter box environment. It also does not clump like traditional sand, making litter box cleaning easy and convenient.