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 13 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 :This Pet Door frame is made of metal laser welding process and high-quality steel aluminum alloy oxidation to ensure durability,security and thermal insulation. Come with one metal closing panel. 3-FLAP DESIGN: Seal out the elements and maintain indoor comfort with the advanced three-flap design featured. This triple layer not only provides weatherproofing but also ensures optimal energy efficiency, keeping your home shielded from extreme weather conditions and 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. AFTER-SALES GUARANTEE: Baboni is a new brand and growing fast. Complete accessories. Customer satisfaction is our pride. We committed to providing customers with high-quality products and after-sales service. Your pet will love this door. ASIN B0CNCP33BQ Brand Name baboni Model Name PD-PD-3 Item Weight 9.75 pounds Manufacturer baboni Weight Limit 40 Pounds Dog Breed Size Medium Frame Material Aluminum Number of Items 1 Item model number PD-PD-3 Item Dimensions LxWxH 4.75 x 12.19 x 17.25 inches Target Audience Keyword dogs, house-cats Minimum compatible thickness 4.75 Inches Item Package Dimensions L x W x H 17.44 x 13.43 x 5.91 inches