Yescom Doggie Secure Lockable Exterior Review

[Freedom for Your Pet]: 20"x15"x2" Pet Door features flexible flap design for allowing your dog or cat to enjoy the freedom of coming and going for potty breaks and playtime freely on their schedule without interrupting you, help you and your pet live happily together. [Large Opening]: Inner frame measures 12 13/16" in width & 17 11/16" in height, which fits your pet with chest width up to 12 3/4" & chest-to-shoulder height up to 16", suitable for most medium-sized dogs and cats. [Sturdy & Durable]: Frame made of high-quality ABS, sturdy & impact-resistant to withstand heavy day-to-day use with lifespan up to 3 years; Flexible flap with strong magnetic bottom to keep closed after your pet passes through the door. [Locking Panel for Access Control]: Comes with a slide-in closing panel, designed to be installed from the interior to control your pet's access to the outdoors and prevent stray animals from coming in, maximizing home security. [Easy DIY Installation]: DIY installation great for storm, wood, PVC and metal doors with thickness from 1 3/16" to 1 15/16"; First measure your pet height and outline position on door, cut out board along the outlined frame and finally install pet door with screws