This oxygen cage is made from selected materials that are safe and secure. Currently renewed models are only available in small, medium sizes. *Oxygen concentrator is required for use as an oxygen chamber. Features: Low odor and tear-resistant material. Lightweight and washable. Simply place the space you want to place with a single touch; Transparent and easy to check the condition of your pet from the top (skylight) or the side. [Product Details] Size S: Outer Dimensions (W x D x H): 19.7 x 23.6 x 19.7 inches (50 x 60 x 50 cm); Size S: Suitable for Dogs, Cats, Rabbits, Ferretts, Hamsters and Small to Medium Animals (Chihuahua, Shihu, Yorkshire Terrier, Pomeranian, Miniature Schnauzer, etc.)