The Magnus Stacking Chair is ideal for contemporary offices, lobbies, conference halls and trade shows. They are made from gray no-fade infused polypropylene with a textured seat for safer seating and an easy-carry backrest handle. They can be stacked up to 35 chairs high when not in use and they support up to 880 lbs each. This modern guest chair has a black metal sled base, they are designed for indoor/outdoor use and are rated for commercial use. The comfortable, contoured seat has a waterfall edge to reduce leg strain. Non-marring plastic floor glides protect hard surface flooring. The Magnus Chair ships fully assembled and comes with a limited lifetime warranty.