Aluminum Pet Door Flexible, tinted, adjustable soft flap with magnetic closure. Solid aluminum frame with reinforced corners. Fits doors 3/8 - 2 inches thick. Closing panel included. PET DOORS Frame Dim: 12-3/4 x 19-5/8e e Cut Out: 10-7/8 x 17-7/8" Flap Open In=10-1/4 x 16-1/4 ePETSAFEe