Deluxe Pet Panel(Bronze) For Sliding Door Clear Glass, Large Anodized 11 1/2 X 16 7/8 Inch Flap Size.Panel Fits Door Opening 78.5 To 81 Inches Tall. Ships For 70# Plus $5 Additional Handling. This Pet Panel Is Made In The Usa With Heavy Duty, Aluminum Extrusions For Extra Strength, With A Clear Tempered Glass Upper Section And An Improved, High-Quality, Rubber Assembly Flap (Panel Flap &Amp; U-Frame) That Have Implanted Magnets And Magnet Keepers To Ensure Precision Of Seal. In Addition, For Further Safety To Larger Dogs, A Split In The U-Frame On This Model Allows It To Release If Jammed. Pride Makes The Very Best Pet Door In The World And Unlike Its Competitors Does Not Use Plastics. Their Rubber Does Not Freeze Or Crack Due To Cold Weather, Nor Go Soft, Become Sticky And Smell Or Warp In Summer Terperatures. Superior Materials Ensures Longer, Trouble Free Service.