4 WAY SWITCH MODE --- The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and fully locked, easy control of your pet's in and out. SIZE & APPLICATION --- Outer Size: 9.8" x 11" x 2.15"(W x H x D), Inner size: 7.9" x 8.7"(W x H), Cut-Out Size: 8.3" x 9.5" (W x H), suitable for installation on doors and thin walls, suitable for cat and doggie lighter than 25.54 lb and waist circumference shorter than 24.8" SAFE & THOUGHTFUL --- The transparent flap let pet see through the door. Exterior rain seal is for waterproof. Brush strip eliminates noise from the door closing. EASY TO INSTALL --- Complete instructions included, make you easily install in windows, doors, cupboards, panels and walls etc. EXCELLENT QUALITY --- Made of ABS material, weather-resistant, the surface is smooth and durable.