Home Security: The Lokatall window door lock is a robust door stopper and sash window lock. It is a must-have for enhanced security, preventing intruder access through your front door, other external doors or uPVC windows. This is achieved by preventing the levering of the door leaf or window sash. A quick, low-cost door and window security solution that can be fitted to uPVC doors and windows. Sturdy Zinc alloy: Sash jammers window locks are made of high quality zinc alloy very durable, ensure they won't rust or wear out easily. These sash blockers are designed to match your decor and provide extra security for your windows and doors. Reinforced design: Security jammer locks have a screw-reinforced back that tightly bonds the base to the locking arm. Easy to Install: Window door lock sash jammer suitable for all kinds of doors and windows, mark the position of the installation hole with a pen before installation, choose a drill bit of about 3 mm, drill the hole at the marked position, and then fix the lock with screws. Simple installation within minutes. Wide application: These multifunctional window anti-theft locks sash jammers are suitable for doors and windows open inward and outward, such as room doors, windows, bathroom doors or balcony windows, etc. Window Jammers security jammer locks also a great security device for motorhome., Weight: 0.22487150724 pounds, Manufacturer: Lokatall