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The Sash Jammer (UK) latch-blocker guarantees the safety of your windows.
It is used both as a "child" lock and as a reliable anti-burglar device.
The rotating part of the latch securely fixes the position of the sash, allowing it to be moved to a slightly open position for ventilation, micro-ventilation, or completely closed. This window lock is easy to use and is installed not only on window sashes. But also when installed on top of the balcony door, it reliably blocks its opening, even without using a key.
APPLICATION:
If installed in the lower part of the frame, you can tilt the sash into ventilation mode, but you cannot open it.
If installed in the middle of the frame, you can securely close the window or door from the inside.
If installed on the balcony door from the outside, you can go out onto the balcony and close the door behind you, using the lock as a handle and a shutter.
ADVANTAGES:
The Sash Jammer window lock is easy to install and is suitable for mounting on almost any windows, balcony doors and aluminum profiles on glazed balconies.