Steelcase Black Plastic Back Move Chair with Grey Fabric Seat Inside the upholstered seat is a system of flexors that support and move with you Arms are cantilevered and allows for alternative postures and sitting positions Can stack up to 5 high on the floor With only 7 screws, Move is easy to disassemble for recycling with common tools in less than 5 minutes and is up to 99% recyclable at end of life Move is tough enough to support up to 300 lbs. and is wonderfully durable