Easy Transport: The four caster wheels on this dog cage provide effortless movement. These wheels lock to secure in place, keeping the cage still and safe for your dog. Two Openings: This metal dog crate features two access points: a large front door and an easy-open top hatch, have easy access to the inside, so you can pet and feed your pup in a flash. Secure Enclosure: This dog kennel has two slide-bolt latches on the front door and a central slide-bolt latch on the top hatch to keep your pets secure inside. Low Maintenance: This pet cage includes a solid slide-out tray and a pull-out floor grate for easy cleaning and maintenance in case your pet has an accident.