Slevoo Cat Door for Window, Adjustable Width of 28"-32" for Double-Hung Windows, 4 Secure Lock Modes and Tool-Free Install, Aluminum Frame and High-Transparency Glass Pet Door for Cats, Small Dogs

High-Seal Climate Control: Windproof strips + magnetic closure for cat window door block outdoor hot/cold air, maintaining indoor constant temperature while enabling pet free access - saves AC/heating energy for energy-efficient pet door use.

10-Min Quick Installation: Tool-free cat door requires no drills or wall damage, compatible with most double-hung windows - easy to assemble, reusable for renters or move-in situations (landlord-friendly pet door).

Size Versatility: This cat door window insert is available in 3 width sizes and fits most standard sliding windows. Be sure to measure your window width before purchasing. The cat door opening dimensions: 7.5"W x 8.3"H, suitable for most pets.

4 Lock Modes & Multi-Pet Compatible: 4-way lock cat door supports "In Only/Out Only/Both Ways/Locked" settings, meets single/multi-cat needs, frees you from repeated manual operation for pet autonomy.

Safety Heavy-Duty Aluminum Frame: Upgraded thickened frame of heavy-duty cat door resists corrosion and scratches, withstands pet impacts, smooth edges prevent pet injuries - safe sliding window pet door.