Whiskers and Windows Cat Door for Horizontal Sliding Windows - Adjustable Pet Flap for Small Cats | Easy Entry & Exit Control | Fits Windows 34"-37" Height (White) | Perfect for Indoor/Outdoor Cats in Apartments & Homes

The Wiskers and Windows Horizontal Cat Door for Windows is a fast, affordable way to install a pet door in your home. This window insert requires no drilling or cutting (can be trimmed 3/4" shorter with metal cutting blade if needed) and can be installed in seconds. Our spring loaded design allows for instant adjustment of up to 3 inches and creates a snug weather-tight fit. This pet door comes in white and black color options, ensuring that it will match your window framing. Great for cats and small dogs, this pet door will give you and your pets the freedom to come and go as you please. A four way lock is included to provide security and access control. Simply use the red and green locking tabs to close it so nothing can enter or exit, allow access in and out, allow the pet to come in only at a certian time, or out only so they can't come back in until you allow it. Measure to ensure proper fit; four things: 1. Height and Width of your pet: This pet door opening is 6" wide x 6" tall for the small size. The large measures 7 1/2" wide x 8" tall. Be sure to include the 2 1/4" inch stepover when calculating opening height. 2. Height of window track: Measure inside your track from the deepest point on the bottom to the deepest point on the top. Choose the size that will fit between 34"-37" or 46"-49". If your window track measurement is within 1" of the bottom (35" or 47") then you will need to make sure that you have enough clearance to get it into the track. If your window measurement is outside of either of these ranges it will not fit properly. 3. Width of window opening: Your window must be able to open 11" wide for the small size and 13" wide for the large size. 4. Track thickness: must be at least 1" thick. It will fit in wider tracks but may need to be secured.