Option for casement windows
Most windows don’t have the option to put them firmly ajar. That it why even a light breeze of wind can cause the window to start ticking against the frame. In former times you were always dependent on an ajar holder, which you had to assemble by means of drilling and screwing. This is especially not desirable for plastic windows. But the gap holder by Kierr can easily be clipped
between to the bottom or the side of your window without drilling or screwing.
The gap holder is user-friendly and allows you to secure the holder with an opening that satisfies your own desires. The gap holder by Kierr is no permanent solution, but can easily be removed when you want your window to be fully closed.