The Walcut Silver 48″ Dog Cage Large Dogs Heavy Duty Dog Crate Dog Kennels and Crates for Medium Dogs and Large Metal Folding Rolling Portable Pet Playpen with Double Doors is a sturdy and durable dog crate that is perfect for medium and large dogs. The crate features a heavy duty steel frame that is designed to last, and two user-friendly doors that make it easy to get in and out of the crate. The crate also has two lockable wheels so that the crate does not move when the pet is inside.