Our Seville Stacking Armchair Features an open mesh back that is both elegant and supportive. Made of Kevring(R) cast synthetic resin, a proprietary resin composite specifically developed to allow the replication ofcast metal without the maintenance and at a fraction of the cost. The unique Kevring cast synthetic resin has both the look and feel of a metal texture with a satin finish while being both lightweight and stackable. Will retain its original color, texture, and finish with little maintenance and without rusting. Specifically built for food service use.