Made of durable plastic, this playpen includes water,resistant Hook Arrows that allow the playpen to be used safely indoors or outside. The playpen works great outdoors to confine your pet during family gatherings, plusitonverts into a pet gate and room divider to confine your pet safely indoors in areas with larger openings. Because the playpen includes a lockable Gate Door, your pet has easy access in/out of the playpen. When used as a gate or room divider, the Gate Door allows you to move freely from one area to another without having to shuffle the entire unit.An optional Convertible Pet Comfort Mat and Convertible Floor Tray are available and sold separately. The Convertible Pet Comfort Mat is specifically designed for use with the 6-Panel Hexagon Playpen. Useits a top to provide shade outdoors or as a floor mat for total pet comfort! The Convertible Floor Tray is specifically designed for use indoors with the 4/6-panel rectangular playpen or the 4/6-panel Convertible Elite Pet Gate. Lockable gate door provides extra pet security and easy mobility. Panel designed to allow for various size configurations.General Product Information: Recommended for small-large dogs 6.6 to 88 lbs. (3-40kg). Instruction manual included. 1‹¨«" space between plastic slats. Durable blow-molded plastic construction..