This pet cage liner is made of EVA, foams, cotton velvets material, it doesn't have any strong odor, safe materials good for pets. Nice choice for hamster sleeping, hedgehog houses hideouts, small animal sleeping bed, etc. Features -Color:Sky-blue -Material:EVA, Foams, Cotton Velvets -Size:30.80X30.00X1.00cm/12.10X11.79X0.39in - The fabric is comfortable and breathable, the comfortable surface makes pets feel very comfortable whether sleeping or playing. - Safe and strong, supple and skin-friendly, washable and reusable to provide a comfortable touch for your pet. - The Pet Sleeping Pad is suitable for most small size pets, like Hamster, Chinchilla and more. - Safe and strong, not easy to tear, washable and reusable, these mats can be used for a long time. - There are enough quantity of mats that are splicable, which can be easily spliced to meet your different sized of pet cages. Package list: 5 pcs × Guinea Pig Cage Liners