Abstract: A nozzle with a knee and housing unit for attachment to hose of a vacuum cleaner with an elongated unit for contact with suction area, as a floor. Housing and elongated unit are flexible joined so for easy maneuverability of nozzle. The elongated unit forms a thin and flat narrow shape which is partially enclosed and has a certain air volume capacity. The elongated unit is made narrower towards the end from knee and housing unit and has a flat floor surface and panel with suction openings facing suction area. The air suction openings have different diameters and size based on distance from source of air suction which optimize the effect of suction and allows suction from all directions.

Abstract: A device for fastening prongs in binders, where the prongs are secured to a prong plate arranged to be fastened to the inner sections of a binder spine. Fastening mechanisms are arranged in rows along the binder spine sections. The fastening mechanisms are releasably connectable to supplementary fastening devices located on the respective prong plates. A device for fastening binder sides is also disclosed.