Modern stackable chair set of 4, with color combination of white and green, polypropylene seats and W3788P368527The back shell and seat plate are injection molded using brand new polypropylene and fiberglass. The seat and backrest are divided into two parts. The backrest features a sleek curved design that conforms to the contours of the human back, providing a comfortable support experience and adhering to ergonomic principles. Tripod: Made of high quality 11mm solid steel, with an arch shaped structure, the surface is treated with acid pickling,