Aspen Pet's Medium/Large Pet Porter kennel provides you with a safe travel & training kennel for your pet. The durable plastic shell comes with heavy-duty, easy to assemble hardware. Each kennel features a wire door with an easy-open squeeze latch, side vents to promote healthy air flow & an interior floor moat to keep your pet dry. Convenient tie-down strap holes allow you to zip-tie the kennel together for added security during airline travel. The Pet Porter is eco-friendly & meets most airline requirements.