Abus FO400N W B/DFNLI

Double security
Window handle lock instead of a window handle with an adjustable steel bolt. Reliable locking windows should be a standard feature for the safety of your home. Protect your windows with this lockable additional security. The clawing steel bolts of the lock can withstand a pressure of over a ton. Since the bolts are adjustable, they can be universally installed on aluminum, plastic, and wooden windows. The security device is mounted on the window sash. It operates like a conventional window handle and serves as both a burglary deterrent and child safety lock.