This ultra clumping clay litter is very economical. The tight clumping ensures that liquid waste is prevented from reaching the bottom of the litter tray where it can decompose and create odours. Processed and dried under sunlight from the highest quality natural ingredients. Regal Cat Litter is made from the finest Bentonite clay and is 99% dust free. The natural colour and earthen aroma of this super fine, sand-like litter satisfies your cat's instincts.