SECURITYMAN Sliding Door Security Bar-Child Proof Sliding Door Lock Bar with Anti Lift Lock - Fits Most Doors & Windows - Adjustable Patio Door Security Bar (18.75"- 51.1") Black

Best Adjustability on the Market: Adjust the sliding door lock from 18.75” to 51.1” inch (18.75” to 34” on 2 bars, 36” to 51.1” on 3 bars) to enjoy peace of mind when you are leaving the door partially open or if you simply want additional security., Quick and Easy to Install: In a matter of minutes, you will enjoy a secure and reliable protection from our sliding glass door lock that is drilled into a door frame and won't loosen over time., Intruders Can't Get In: Heavy duty door and window security bar serve as both a physical and visual deterrent on most patio doors and windows, Young Ones Can't Get Out: Child proof lock and height prevent kids from getting out. Height also allows for a comfortable adjustment of the sliding door lock bar., What's Included: Sliding Glass Door Security Bar (2 Parts), Anti Lift Lock (2 Parts; Metal Plate & White Saddle Mount), Double-Side Threaded Screw, 4X End Caps (Black, Plastic), 5X Flathead Screws, User Guide, 12 Month , & Friendly Customer Support