Model CONGRESS chair, with a metal frame and polypropylene seat/backrest. Stackable up to 6 chairs high. Lightweight and sturdy chair, characterized by an ergonomic seat with an oval hole. 4-leg metal (steel tubing) frame and 100% recyclable polypropylene shell, textured on the internal side and glossy on the external side. Designed to meet the most varied needs: from the house to the contract sector, from the office to the meeting or waiting rooms.