1Warmth and Ventilation: Hamster cotton ball is made of cotton as the filling, so it can be warm and ventilated at the same time. 2Multipurpose: Hamster cotton ball is soft and cuddly, perfect for your little pet to sleep, play and lay on. 3Keep Clean: You can put the cotton ball on the floor of your home as a bed for your hamster to sleep on to keep the floor clean. 4Easy to Use: Lay down wood chips first, then fill the bed with cotton ball, usually you just need to put the cotton into the bed and it will build the bed by itself. 5Feeling of Security: Filling its bed with cotton ball will give it a sense of security, as if it has a warm feeling surrounding it to get through this cold winter. Specification Item Type: Hamster Cotton Ball Material: Cotton Package List 1 x Hamster Cotton Ball (1 Bag)