• Size: 70L x 20D
• Lockable Version
• Number of Keys: 1

A sash stopper is fitted to either the frame or the window (depending on which way the window opens) and rotating the arm out stops the window from opening. The arm can be locked in the open position to prevent unauthorised unlocking of a window. It is easy to install and reversible, suitable for both left and right handed doors. It is also usually installed on UPVC doors & windows and can also be used on letter boxes