Mount the pads on the clips
Snap the pads with the holes in nipples on end of the clips, the round part of the pad should point to the inside of the clip.
Refer to the table below to choose the proper size pad, or just try out: RIGHT the clip remains on your window frame without support.
TIP: if your pads on one clip vary in size: mount the clip with the bigger size pad facing towards the inside.
Place the clips on window and frame
Place the first clip on the stationary window or on the window frame, place the second clip onto the open window
at the same height as the first clip.
TIP: choose a position of the clips above or under the handle of your window.
Mount the extension bar and choose the desired opening of the window
Bend the bar in "S" shape before using it for the first time. Snap the extension bar with the end with one hole over the clip on the stationary window or frame, than snap the extension bar with the end with four holes over the clip on the open window frame.
TIP: for your first use choose the maximum opening possible. Mount the window-blocker on lower part under the window frame: the closer yount mount it towards the hinge of the frame, the wider the opening will become.