The Zen offers flexibility throughout a wide range, suitable for many applications. Ergonomically contoured seat with flexible polypropylene shell, available in 5 colours: white, green, black, orange, and red. Frames include a stackable 4-leg frame, stackable sled frame, a stackable stool frame and a polished alloy castor base, all finished in chrome (indent powder coat white or black finish). Optional upholstered seat pad and fully upholstered inner shell in selected fabrics, vinyls & leathers.