Vertical Cat Door for Window,31"-42" Adjustable Height,1-Min Install | 4 Locking Modes,Aluminum Frame,HD Glass,Magnetic Closure,Weatherproof Pet Door Window Insert for Cats

1-Min Tool-Free InstallDesigned specifically for sliding windows,it requires no damage to walls and can be installed in minutes by simply placing it into the window track,offering zero-installation barriers. | Adjustable Height Fits horizontal windows 31"-42"Height.Door frame width: 13.8".Cat door size: 7.1"W 7.2"H.2Door frame thickness: 0.83".Please be sure to measure window height & track thickness according to the method provided to select the best size. | HD Glass & SturdyOur window cat door has high-definition transparent glass (no light blocking,easy to observe cats).Made of high-quality thick materials,its scratch-resistant,impact-resistant for long-term use. | Magnetic Design & 4 LocksThe cat door has magnetic closure (auto-tighten to keep out wind/dust/mosquitoes) and 4 locking modes (full open/locked,in-only,out-only) for cat safety and home security. | Practical & User-FriendlyThis cat door reduces window-opening trouble,providing a safe passage for cats.A perfect essential accessory for cat owners pursuing convenience and safety.