Check the listing for details. Black Plastic Dog Cat Door With Sliding Lock Panel & Soft Magnetic Flap Large. Color: Black, Condition: New. Listed at 57.00 USD. Open box item - unused or installed Dog Door for Large Dogs, Frame Door for Large Dogs and Pets, Strong Plastic Doggy Door and Medium Pets with Sliding Lock Panel and Magnetic Soft Flap (Large, Mattle Black) 【STURDY & ENERGY-SAVING】Classicmacher Weatherproof Dog Doors are made of strong, high-quality plastics. Additionally, they feature exterior slide-in locking panels to provide better protection for your home against extreme weather conditions and to reduce energy loss. 【LARGE DOG DOOR】 Doggie door for Large Dogs frame size is 13 7/8''(W) x 21 1/8''(H), Flap opening is 11 ”(W) x 16 1/4''(H). It fits paneled, wood, PVC, and metal doors 1 '' - 2 '' thick, and is designed for pets up to 100 pounds. 【FREEDOM & INDEPENDENCE】The white frame of plastic material is designed with a backplate, solid magnets, and magnetic flaps that allow your dogs to enjoy free entry and exit, potty breaks, and playtime without your help. Easily prevent any unwanted guests from entering. 【EASY INSTALLATION】 Classicmacher pet door is easily installed on all types of doors. A cut-out template and step-by-step instructions are included, providing simple-to-follow guidance throughout the installation process.