●1> 4 Switch Modes: Four independent models to lock with switches-swing out only, in only, both in and out, and fully locked, easy control of your pets in and out; ●2> Applications:Outer size 7.5" x 7.8" x 0.79"(W x H X D), inner size:7.08" x 7.48"(W x H), cut-out size: 6.3" x 6.7" (W x H), suitable for installation on doors and thin walls, suitable for cat lighter than 18 lb and waist circumference shorter than 24" improved weather. ●3> Easy To Install: Complete instructions included, make you easily install in windows, doors, cupboards etc; ●4> Thoughtful Design: Transparent flap let pet see through the door. Exterior screen is for water resistant. Brush strip reduces noise from the door closing; ●5> Assured Quality: Made of ABS plastic, weather-resistant, the surface is smooth and durable