Kaytee Aspen Bedding is manufactured with all natural aspen shavings specially processed to eliminate dust and wood debris found in other bedding. This hard-wood bedding contains no aromatic oils or inks and it can be used in all cages, aquariums and Kaytee CritterTrail products. This bedding is suitable for hamsters, mice, gerbils, rabbits, chinchillas, ferrets and other small animals.