Sliding Glass Dog Door XL 75 7/8"-80 11/16", Adjustable Pet Door for Dogs, Heavy Duty Metal Frame, Tempered Glass, Secure Lock

【Durable Construction】: Crafted with a heavy-duty metal cover and aluminum frame; resists wear and tear, ensuring long-lasting performance; tempered glass window offers superior impact resistance compared to plastic alternatives 【Adjustable Height】: Designed to fit sliding glass doors ranging from 75 7/8" to 80 11/16" (1927 - 2049 mm) in height; simplifies installation for various door frame sizes; accommodates most standard sliding glass doors 【Secure Locking System】: Features a locking mechanism to control pet access; prevent unwanted escapes or roaming when you're away or during nighttime; offers peace of mind and enhances pet safety 【XL Flap Size】: The 13 5/8" x 23 5/8" (346 x 600 mm) flap provides ample space for medium and large-sized dogs; ensures comfortable and easy passage for your furry friend; accommodates a variety of breeds 【Easy Installation】: Designed to easily slide into your existing sliding door track without requiring complex tools; fits most standard sliding door tracks; offers a non-permanent and renter-friendly solution for pet access