These polymer-based chairs can be used both indoors and outdoors. The Bubble Club Chair by Kartell (shown above), is made of non-toxic materials, and it has all its plastic parts printed with an identification mark to determine the correct recycling classification. It sells for $680. The Heller Mario Bellini MB1 Armchair (below) is constructed of one piece roto molded polymer, it sells for $450. It would also be good to see these chairs made with biopolymers.