Outer size: 7.56' / 19CM(W) x 8.46' / 21.5CM(H) x 2.17' / 5.5CM(D) Inner size: 6.18' / 15.7CM(W) x 6.30' / 16CM(H) x 2.17' / 5.5CM(D), it's suitable for cat lighter than 15.43 lb and waist circumference shorter than 15.75' / 40CM.

Note

• 1). Make sure that the width and height (shoulder level) of the pet are inferior to the pet screen door, thanks.
• 2). The magnet at the bottom of the door frame is for aligning the flap after swings, it doesn't work as a lock, thanks.

Upgraded Product Features

• Convenient knob-style switch, you could easily control your cat or other cats in or out options, in only, out only, in and out freely, totally locked.
• Fixed groove with snap tabs for weather-proof brush strip greatly help fix it.
• Tunnel depth could be cut down, plus 1 package long + 1 package short screws, double-sided tape, considerably meet your needs that install to different kinds of interior doors, exterior doors, walls, windows, cupboards, glass, etc.