4way locking mode The pet door can be adjusted with the red and green buttons with tabs to 4 positions out only in only both in and out and fully locked easy control of your pet s entry and exit Size Application Outer size 235cm W275cm H High quality Made of ABS material weatherproof the surface is smooth and durable It has a fixed groove with snap tabs for weatherproof brush strip fixes the brush strip firmly Even if the brush strip comes loose it is easy to put it back into the fixed groove This helps the brush strip reduce noise stop raindrops wind or pests like mosquitoes to the most Easy to install Stepbystep installation instructions in the user manual included in the sales box and installation video presentation for your reference take care of the message and prepare the necessary tools easy to install as needed The depth of the tunnel can be cut down according to your installation need Applicable scene It is suitable to be installed on interior doors exterior doors walls windows cabinets glass etc