IDEAL PET PRODUCTS SINCE 1979 Perfect Pet Tubby Kat Cat Door with 4 Way Lock And LEXAN Flap, 7 1/2" x 10 1/2" Flap Size

For interior or exterior use | For large cats up to 25 pounds | Transparent Unbreakable LEXAN 7 ½-inch by 10 ½-inch flap with 4-way lock | Includes a 4-way lock to keep your pet in or out. You can manually turn knob to desired position: in only, out only, free in/out and locked. | Thickness range is 1-1/4 inches to 1-3/4 inches, cut out size is 8-1/4 inches x 13-3/4 inches.