Double security

Window handle lock instead of the window handle with adjustable steel bolt. Reliable locking windows should be a basic feature for the safety of your home. Protect your windows with this lockable additional security. The clawing steel bolts of the security device 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 a burglary deterrent and child safety lock.