The SMONTER Heavy Duty Dog Cage is perfect for large dogs. With its double locks and sturdy metal frame, this cage is built to last. The non-toxic finish on the cage protects your pet from scratches or bites. The removable tray makes it easy to wipe off any accidents. The front door is convenient for pets to enter and exit. Attaching a 360-degree rotating caster to the bottom of the cage is easy to do and allows you to easily move the cage around.