PetSafe Pet Screen Door for pets up to 30 lb. This swinging wire mesh door snaps directly onto your existing screen door or window for quick and easy installation. The high-impact plastic frame includes a slide lock to control your pet's access. The flap opening measures 8" x 9-1/4", and the outer frame size is 9-7/16" x 11-7/16".

• Swinging wire mesh door snaps directly onto any metal or plastic screen door for quick & easy installation
• High impact plastic frame includes a slide lock that will allow you to control your pals access
• Flap opening 8" x 9-1/4"
• Outer frame size 9-7/16" x 11-7/16"
• For dogs and cats up to 30 pounds