Small Animal Cage House Bed Warmer Cotton for Hamster, Mice , Chinchilla and More, Multicolor,1 Bag Made of natural cotton, soft and comfortable Breathable, and keep your hamster warm. Comes approx 50grams in one bag. In the cold winter, hamster will easily catch a cold , you'd better keep your hamster indoor and put more warmer cotton on the cage, so that itll keep it warm A must have for your small animals in the cold winter Better to use in your small animal cages, beds. Small hamsters once see the cotton, they will instinctively handling and torn cotton to build a warm nest. Besides, when mother hamster gave birth small hamsters , the cotton can help them build parenting and protect small babies