The Nylabone Collapsible 21" L x 16" W x 15.5" H Folding Medium Crate Pet Carrier is a practical and durable pet crate designed for medium-sized dogs or it can be used for cats!. Made of plastic with a top accessible design, this crate is easy to clean and provides a comfortable and secure space for your pet to travel or stay in while on the go. The collapsible design makes it convenient for storage and transportation, making it a versatile option for pet owners.