Frienda Gold Hanging Jingle Bells 7-Bell Dog Doorbells for Door Knob Go Outside Dog Bells for Christmas Decor and Holiday Home Decorations (18.7 x 1.8 x 1 inches) - Product Features
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 walls that are 4 3/4 - 7 1/4 in thick.Flap Opening: 8 1/4\"W x 12 1/4\"H. Frame: 12 1/4\"W x 17 1/8\"H. Cutout in wall:9 7/8\"W x 14 3/4\"H.
EASY INSTALLATION: This pet door easily installed in all types of interior and exterior walls; cut-out template and step-by-step instructions are included, simple to follow instructions walk you through the install.
DURABLE, SAFE AND ENERGY-SAVING:This Pet Door frame is made of 100% metal laser welding process and high-quality steel aluminum alloy oxidation to ensure durability,security and thermal insulation. The double-flap provides weatherproofing and energy efficiency and helps protect against extreme weather, air drafts.
TAILORED FOR YOUR PET : Flap opening is 8 1/4\" W x 12 1/4\" H and is designed for pets up to 40 pounds.