1. High Quality Material: The door panel is made of ABS material, and the outer frame is made of acrylic material, which is safe and non toxic, very strong, and can be used for a long time. 2. 4 Lock Modes: This pet door can be set with different access modes, and you can adjust the four access modes by rotating the switch to fully meet your different needs. 3. Entry And Exit Modes: Including only entry but no exit, only exit but no entry, both entry and exit, fully locked, multiple modes, easy to control pets in and out. 4. Silent Brush: There is a brush at the bottom of the door panel, the brush can keep pets in and out of silence, professional design, will not disturb your daily life. 5. Quick Reply: The magnet at the bottom of this flap door can quickly restore the door panel to its position after the pet leaves, a smart pet door, it is more convenient to manage pets.