The Petmate Ruffmaxx Kennel provides pets and pet parents with a comfortable and safe travel experience. The metal door with a squeeze latch and strong plastic shell provide durability. The ventilation openings that surround this travel kennel give pets a fresh flow of air and improved visibility. The kennel easily assembles with the included nuts and bolts. The smaller sizes of the kennel come with a carrying handle and compartment covers for added convenience. The dog air travel kennel accommodates pets from 20-25 pounds. The air-approved dog crate meets most airline cargo specifications for easy and safe travel, but pet owners should always check with individual airlines. The off-white colored top and green base make this kennel a perfect retreat or travel space for pets and pet parents who love the outdoors.The height of the kennel should be 3-4 inches taller and longer than your pet so there's ample space to fully stand up, easily turn around and comfortably lie all the way down.