These upholstered seat and back chairs are budget chairs and not as strong as the Stacker C1 Chair. They have 19mm powder coated steel tubing frame which is still a very strong chair however it is more suited to a lighter framed person. It has medium density foam on the seat and backrest. These chairs can be stacked to 15 chairs high. The chair seat is 490mm high, 450mm wide and 560mm deep. Overall height is 825mm. Weighs 6kgs. Available in black, blue and burgundy cloth.