Greenguard certified stack chair with antibacterial and antimicrobial vinyl seat and back.. Thick solid steel wire sled base that supports up to 300lbs. Chair stacks up to 8 high or up to 20 on optional dolly. Built-in ganging brackets for easy grouping. Must be ordered in multiples of 4. Meets or exceeds ANSI/BIFMA safety standards. CAL117 and UL94 foam seating Applications:Reception chair, guest seating, school chairSeat color:Black Frame color: Chrome