Heavy-duty 0.4-in thick metal tubes form a deformation-resistant, chew-resistant frame that helps keep dogs securely contained. The 37 x 23 x 30 in crate folds to a compact 37 x 7 x 30 in size for easier storage and transport when not in use. A lockable top door, front door, and small feeding door with spring-loaded latches let you interact with your dog or add food and water while limiting chances to escape. Four 360° rotating universal wheels with brakes make it easy to move the 135-lb capacity crate and keep it in place, while a pull-out 1.2-in deep tray helps contain spills and fur for quicker cleaning.