Kaytee Aspen Pet Bedding: Kaytee Aspen Bedding & Litter is manufactured with all natural aspen shavings specially processed to eliminate dust and wood debris found in other bedding. Aspen bedding comes from hardwood, eliminating aromatic oils found in other types of wood bedding. *Can be used in all cages, aquariums and habitrails. *A natural biodegradable product. Product Features: Specially processed to eliminate dust and wood debris Can be used in all cages, aquariums, and habitrails Natural, biodegradable product Ingredients: Kiln dried aspen shavings. Sizes: 6lb -2500cu in 16lb - 4cu ft 27lb- 8cu ft Caution: If you are changing brands of bedding or litter, please be sure to watch your animals the first few days with the new bedding. This is to be sure they are not attempting to ingest the bedding or litter.