Innovative school stack chair features scratch-resistant chrome legs. SuperGlide composite ball glides for durability and protection on hard floors and carpet. Molded seat with vented back has reinforced ribbing in back and under seat for strength. 14 gauge tubular steel legs and steel lower back support. Full MIG welded frame. No penetration through the seat surface. Available in 8 colors. Our school stack chair.QUICK-ship! Safety tested.