This tilt restrictor/ventilation arm allows the user to set the window to the desired angle of tilt with 12 pre-set positions. It provides up to a maximum of 100mm ventilation and child safety. The arm can be released by an adult for full window opening. The arm should be fixed to the frame and the other smaller part to the opening window sash. The photographs below show the two parts fitted on a window, the bottom photo shows the window slightly open.
This part is universal, it can be fitted to a left or right handed window.
These restrictors are sold singly. The price is for one.