Sumatra Classic stacking armchair in bronze mist color with synthetic wicker finish. Commercial rated for outdoor use. Kevring synthetic metal Made of UV resistant resin. Three year warranty. By Grosfillex outdoor patio furniture. 4 piece minimum order quantity. Grosfillex produces commercial quality, durable resin furniture suitable for use at restaurants, hotels, stadiums, country clubs, outdoor venues and other institutional uses. Their manufacturing process uses synthetic materials to produce stylish, sturdy chairs, tables, chaise lounges and more that can withstand commercial use. Although some depictions may look like wood, this furniture is manufactured from resin / synthetic processes, which makes it withstand weather and heavy use.