Architects Carolina Martinelli and Vittorio Venezia, in collaboration with Milan based Alessandro Stabile, designed the OTO chair for the Italian furniture brand One To One. Inspired by the circular economy, the OTO chair is manufactured using recycled plastic and a single mould which is a third of the size of traditional moulds. The chair is transported in a flat package and can be assembled using an interlocking system without screws or inserts. Martinelli Venezia. One To One