GamFratesi's timeless shell armchair assumes a workaday guise when paired with a weight-distributing 4-star base with rollabout castors. In a choice of 7 curated colors, Bat embodies comfort within its fluid profile and ergonomic contours, fashioned in a sturdy molded plastic with a pleasing matte texture and soft touch. The functional metal rolling base also offers a choice of options, in matte black, soft white or polished aluminum finishes.