BONA PSK tilt and slide window is a perfect structural solution in rooms, where other solutions cannot be used or their use is very limited (e.g. due to small area of a room). Thus, tilt and slide windows are a best alternative for standard balcony windows with sashes to the inside. The saved space allows for fee arrangement of furniture in the room and adds free space in a lot of houses with limited space. The tilt and slide door are suitable for shaping of housing spaces in an original manner and on a large scale both in new and renovated buildings. Ab additional advantage of such types of windows is that they are made of standard profiles and glass, which makes it possible to combine particular elements of the window with other elements without the need to change the system.