Easy helper for blocking open window, primary purpose is blocking swing door. It is modification of a basic Open Window Holder. Otočný_čep_V2 is free for rotation +25°-25°. Its good for two mode window opening. Ventilation and standart open.
For montage withou screew use base_gluing
Modification more simple version:
https://www.printables.com/cs/model/927225-open-window-holder
The author marked this model as their own original creation.