Wild Harvest Natural Bedding for Hamsters, Gerbils, Rats and Mice. 100% natural material that allows your pet to burrow and build a cozy nesting spot. Safe for your small pet. Serves as a blanket to keep your pet warm and cozy. Satisfies nesting instincts. This golden silky fiber is natural, non-toxic, hypoallergenic and safe for the environment. It's grown without pesticides and is not ground-tilled. Break into small handfuls, place 1-2 handfuls in habitat near sleeping area. Your pet will move and build its nest with the puffs. Replace with new puffs weekly when cleaning habitat. It is recommended for the health and vitality of your pet to clean its habitat weekly.