This system is grain-free, making it suited to dogs with grain sensitivities or allergies. It avoids widespread allergens like wheat, corn, or soy, which happen to be usually triggers for dogs with digestive challenges or food intolerances. Box that contains 3x KITTY SAND CLUMPING BENTONITE 5Kg Not like non-clumping litters, https://www.petskyonline.com/small-pets/