When plastic cages can't stand up to your dog's chewing, the ProSelect Medium Sized Steel Empire Dog Cage is the answer. This extremely durable dog cage consists of 20-gauge steel reinforced by 0.5-inch diameter steel tubes that makes it nearly impossible for a dog to destroy. The steel cage includes strong welds at stress points and strong dual latches on the door. The hammertone finish also can stand up to plenty of abuse from your dog as well. The cage includes a steel tray and four casters that are removable. The exterior dimensions of this medium sized cage are 37 by 25.125 inches with a height of 33.75 inches when the casters are attached. The ProSelect® Empire Dog Cage includes a floor grate, steel tray, and four removable locking casters for added mobility.