Abstract: The present invention relates to a chair or other furnishing which has a seat and backrest comprised of slats which run between frames, where the slats are connected to the frames using a novel fastening method. The slat is first created which contains a support member. To do this two attachment pins are inserted through holes in the slat support member. This assembly is then placed into a textured aluminum mold and located within the mold by the two attachment pins. The mold is sealed and injected with the self-skinning urethane formulation, thus totally encapsulating the support member. Seating frame thru-holes are bored in the seating frame on appropriate spacing. Receivers are inserted into each of seating frame thru-holes. The finished slat is attached to seating frame by pushing both attachment pins through receivers until attachment pins latch within the receivers, which in turn latch within the seating frames.