These comfortable polypropylene chairs come in a rainbow of colors. The sturdy 17-gauge steel frame has a contemporary Silver powder-coat finish. The seat height is 17-3/4". Chairs come with or without arms and stack up to 15 high. Armless chairs have a built-in ganging bracket for quick and easy linking into rows. Casters and a chair dolly, which holds up to 15 chairs, are sold separately.