Sturdy: The sliding glass door security bar is made of 1" diameter white painted metal, which is stronger and more durable than 3/5" window safety bars, less prone to damage and long-lasting. A Variety of Adjustable: The patio door security bar with a total length of 50inch can be freely stretched and adjusted between 17.7-50.5inch to perfectly adapt to various lengths. Non-slip end design: The sliding door stop is designed with a rubber tip to increase friction and fix it with double nuts to adjust the tension, not easy to fall off, no drilling required, easy to install, and will not damage the door frame. You can use it with confidence Easy to Install: Our top window pole can be easily installed in only 3 steps. After selecting the approximate size of the pole, adjust the spring clip to the appropriate size, and fine tune the size of the double nuts on the anti slip base. You can easily install it in place in 1 to 2 minutes! Widely Used: This sliding door security bar can be used as both a sliding door lock and a window safety bar, ensuring the safety of pets and family. When you travel or go on a business trip, you can carry or leave it at home. Protecting your home or hotel will make you feel safer. Premium Service: If you have any questions about our door and window posts, our customer service experts are available 24/7 to assist you and respond within 12 hours. We are always online to safeguard your safety