FREEDOM AND INDEPENDENCE: Give your cats and dogs freedom to go in and out without your help, arrangement for potty breaks or play time by themselves.
DIMENSION AND TELESCOPING WIDTH: The telescoping tunnel accommodates door that are 1 3/8 – 1 31/32 in thick. Flap Opening: 10 1/4″W x 16 1/4″H. Frame: 14 1/4″W x 21 1/16″H. Cutout in Door:12″W x 18 7/8″H
EASY INSTALLATION: This pet door easily installed in all types of interior and exterior doors; cut-out template and step-by-step instructions are included, simple to follow instructions walk you through the install.