High-impact plastic. Fits paneled, wood, store, PVC, metal and glass doors. Four way locking system allows the following access: fully open, fully locked, in only, out only. Weather-resistant magnetic flap.
Double-flap system insulates for energy efficiency. Aluminum frame with durable plastic telescoping tunnel. Can be installed in interior or exterior walls or doors 4-3/4" to 7-1/4" thick, including siding, stucco, and even brick. Add an extension tunnel for deeper walls. Features 2 flaps, one in the inner frame and one in the outer frame.