Door-in-Door pet gate secures dogs but allows cats to pass in and out Wall-mounted design results in a sturdy attachment Durable, all-steel construction Tall, 41"-gate corrals large, active pets, while 7" x 10" small door allows cats to pass back and forth to access food and litter. Gate can be installed to swing one way. Locking lever-style handle, rounded corners, and tough, all-steel construction guarantee safety and dependability. Wall cups screw into wall for maximum stability. A 6" extension is included for openings up to 41" wide. Please specify White, Platinum, or Black. Gate is 29-1/2"-35" wide x 41" high (can expand to 41" wide with included extension); Extra Extensions sold separately. Please click on "More Information" for Pet Gate features and instructions.