Design Within Reach Muuto Fiber upholstered Chair with Swivel Base (Set of 8)Flexible Fiber Side Chair with Swivel Base from Muuto. A simple, minimalist interpretation of the one piece seat and back shell chair, it rises from a die cast aluminum base along a central column that holds the smoothly pivoting swivel, rising nearly seamlessly to a curving shell seat and back molded from wood fiber. Chair: Width 18. 7", Height 30. 31", Depth 20. 86", Weight 15. 87Lbs Seat: Height 18. 11"