Designed by outfitters and dog trainers, Ruff Land Kennels Medium Kennel offers premium quality and durability. Made of heavy-duty, high-density polyethylene and crafted with one-piece molded construction, eliminating weak points and debris-collecting seams for top-end strength and easy-to-clean convenience. Double-swing composite door and built-in handle. Stackable design features built-in metal inserts that let you secure stacked kennels and join kennels side-by-side (Coupler Kits sold separately). One-year manufacturers warranty. Exterior: 28L x 18W x 20H. Interior: 26L x 18W x 19H. Wt: 17 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Kennels.