ALVIN?? Premo Black Ergonomic Chair per Piece(s)

ALVIN?? Premo Black Ergonomic Chair. The ultimate in comfort! Stylish and ergonomic, the Premo provides solid orthopedic spine support and a full-size contoured, upholstered seat for added comfort. Includes pneumatic height control, adjustable backrest with heavy-duty spring tension angle control, dual casters and a 25" diameter reinforced nylon base. Seat cushion: 19" x 17" x 3"; backrest: 16" x 14" x 2 1/2". Assembly required.