Dog Door for Sliding Glass Door 75 7/8"-80 11/16", Adjustable Pet Door for Dogs, Metal Cover Sliding Door Doggy Door, Secure Lock, Easy Install

【Durable Construction】: Crafted with a robust metal cover and aluminum frame; designed to withstand harsh weather conditions and provide long-lasting performance; features a tempered glass window for enhanced impact resistance 【Adjustable Height】: Compatible with sliding glass doors ranging from 75 7/8" to 80 11/16" in height (1927 - 2049 mm); simplifies installation and accommodates a wide range of door frame sizes; suitable for standard and non-standard doors 【Secure Locking System】: Equipped with a secure locking mechanism to control pet access; prevents unwanted roaming and ensures pet safety; ideal for nighttime use or when you're away from home; provides peace of mind 【Easy Installation】: Designed for tool-free installation; slides easily into your existing sliding door track; fits most standard sliding door track heights; suitable for both homeowners and renters; minimizes installation complexity 【Spacious Flap Size】: Features a 10 1/4" x 16 1/4" (260.4 x 412.8 mm) flap; provides ample space for medium-sized pets to pass through comfortably; ensures easy and convenient access for your furry companion