Knoll Bertoia Molded Shell Side Chair The Bertoia Molded Shell Side Chair is a reintroduction of a design originally debuted in 1960. Merging the sublime grace of the wire form Side Chair with a touch of color and natural flex, the reinvigorated classic is ready to add any colorful accents to any room. Mix and match the chairs or keep a singular palette, the Bertoia Shell Chair offers an iconic design with a playful tone. Designer: Harry Bertoia, 1960Manufacturer: KnollDimensions: 21.75"w | 19.75"d | 28.75"h | seat height: 17.75" Construction: Seat is glass fiber reinforced nylon Base is constructed of welded steel rods with polished chrome finish or white or black powder coat Plastic glides included on the sled base to protect the floors Knoll logo stamped on the back of the base Greenguard Indoor Air Quality Certified®