Perfect Pet Multi-Flex Pet Door

Size :Medium - 6.38" x 11.25" Flap Size The multi-flex flap features dual pane lexan hard panels with an air gap in-between for maximum energy efficiency and wind resistance. In addition, the flaps innovative design helps eliminate the potential for trapping ears, paws and tails.

• Maximum energy efficiency
• Inner telescoping frame that adapts to doors of 1-Inch to 1 3/4-Inch thickness
• Spring loaded locking slide for one-handed use
• Flap sizes:medium 6 5/8-Inch by 11 1/4-Inch andextra large 10 1/4-Inch by 15 3/4-Inch