IRIS 24'' Exercise 4-Panel Pet Playpen without Door, is perfect for puppies, small to large dogs, and other family pets. The IRIS Exercise Pet Playpen can be utilized indoors or outdoors; the pet playpen is portable and provides 8 square feet of exercise space for pets! Each panel measures 33.6"W x 24"H; door measurements 14.5''W x 16.5''H; the distance between bars is 1.5''. The IRIS Playpen is made in the USA of durable, heavy-duty molded plastic, the playpen will last for years and will never rust! The panels interlock securely with full-length connecting rods, and the pens can be positioned in different shapes to suit your pet's needs best. Each panel features a non-skid rubber foot to protect flooring. To create a more spacious exercise pet playpen, add IRIS 24'' Exercise 4-Panel Pet Playpen Panel Add-On, White, ASIN: B0058RA4HE and IRIS 24'' Exercise 4-Panel Pet Playpen Roof, White, ASIN: B006UJGFZY to keep pets safe and secure!