Ideal Pet Products Deluxe White Aluminum Pet Door MediumIdeal Pet Products Deluxe White Aluminum Pet Door Medium was developed with your perfect pets safety and sense of adventure in mind. This durable, economical pet door is a great way to give your pet access to shelter during rain or heat. Strong Aluminum frame that adapts to doors ranging from 1 2" to 1 3 4" in thickness Clear vinyl flap with patented edges that wont warp from use or extreme temperatures Spring loaded Lockout slide to keep your Ideal