Give your pet the freedom to move indoors and out with this height-adjustable sliding glass dog door, designed for a secure and convenient home setup. Featuring a durable aluminum frame and tempered glass, it installs easily onto most sliding doors with an adjustable height range from 75 7/8 to 80 11/16 inches. The 10 1/4 x 16 1/4 inch flap provides ample space for small to medium-sized pets, while the upgraded metal plate and reinforced hinge structure ensure reliable performance even in cold weather. A secure locking mechanism allows you to control your pet s access—perfect for nighttime or when you re away—offering safety and peace of mind without compromising style or ease of use.