Ideal Pet Products Plastic Dog Door, Gray, X-Large, 2.12"L x 12.43"W x 18.62"H

Impact resistant frame adapts to doors ranging from 1.25"-2" in thickness Extra large pet door measures 11.75"L x 17.5" W Ideal for cats or dogs that weigh between 36-90 lbs Flexible, tinted vinyl flap with patented edges won't warp from use or extreme temperatures Floating bottom forms an airtight seal after every time your dog walks in and out Ideal Pet Products dog door features a lock-out slide that keeps your pet out of mischief when unsupervised