Catsan Wood Comfort litter is made from fine pored wood granules, a by-product of wood industry. The granules absorb more than twice their own weight in liquid and together with the natural characteristics of wood they prevent odour development. This litter is 100% natural and 100% biodegradable and safe for kittens. Catsan™ Wood Comfort litter is 100% natural and 100% biodegradable. It is made with fine pored wood granules, a by-product of wood industry. Catsan™ Wood Comfort litter is suitable for all cats, including kittens. Catsan™ Wood Comfort litter has easy opening sprout for convenient handling.