PetSafe Deluxe Pet Panel Panels for Sliding Glass Doors 76-3/4 to 81 Tall, Large, White Heavy duty aluminum construction with shatter resistant Tempered safety glass Adjustable height for 76 3/4 In. to 81 In. with a 5 In. riser for medium-legged dogs Reversible lock for right or left sliding doors, security cover may be installed on either side. Flexible, safe and not-toxic see-through vinyl flap Easy-to-follow installation manual.