54/48/42/38 Inch Heavy Duty Dog Crate with Wheels, Folding Metal Big Dog Cage for Large and Medium Dogs, Extra Large XL XXL Indestructible Dog Crate with Removable Tray.Sturdy Metal: 54 Inches heavy duty dog crate uses a high strength metal construction, much stronger than fine wire cages. This is a very sturdy large dog crate, even for strong and powerful dogs. Maximum load capacity up to 400 lbs Folding Design for 5 Minutes to Install: The extra strong big dog crate has a foldable design, so you don't have to spend time assembling. The slide out tray that comes with the kennel can catch fallen any soiling, helping