Give a small-to-medium dog or cat their own way outside with this medium pet door, sized with an 8 1/4 x 12 1/4 inch flap that fits into interior or exterior doors, garden doors, or walls. The metal frame and triple magnetic-flap design help the door sit flush and seal out drafts, rain, and dust while still opening easily whenever your pet pushes through. It's built for doors between 1 1/16 and 2 inches thick, and the included hardware covers a complete installation without needing extra parts. The reinforced magnetic closure keeps things quiet, so the flap doesn't bang shut on its own. At 7.2 pounds, it's light enough to mount without extra bracing, and sturdy enough to hold up under daily traffic from an active pet.