Just as a sheet of paper folded in half gains strength and consistency, as does the Stratos, with a line running along the center of the shell like a rib, creating intriguing plays of light and shade on the surface. The collection features a precise, essential design that conveys a strong personality. Solid, ergonomic, comfortable and versatile. Stratos is made from polypropylene, recyclable and mass coloured in a range of designer colours. Frame finish available as standard in Chrome. Optional Black or White painted finishes are available at additional cost. Stackable to 6 high on the floor and 12 high on a trolley. Stratos chairs are available with or without armrest and with a variety of bases (four leg base, sled base, wooden legs or aluminium swivel base with castors and gas lift) and is also available stools of two different heights.