Ideal Pet Products Air Seal Pet Door with Telescoping Frame Durable, low-maintenance, energy-efficient pet door with inner telescoping frame Made from strong, impact-resistant ABS thermoplastic with a clear, weather-resistant Lexan flap For dogs and cats up to 35 pounds Installs easily and securely in minutes Flap Size - 6 5/8" x 11 1/4" Manufacturer Warranty does not apply to product purchased through Amazon Warehouse Deals Need Assistance? E-mail Ideal Pet Products expert US-based customer care specialists seven days a week!