The riviera drafting chair offers a contoured, breathable mesh back and durable armrests for added comfort. The chrome footring allows the user to sit comfortably with the added height needed for use with a studio designs' drafting table. Featurescolor - blackadjustable seat and backrestadjustable height chrome footringfive star nylon base with casters for mobilitypolyester fabric upholstery with mesh back for durabilitybackrest dimension - 18 w x 17.5 H in. Seat dimension - 19 w x 17 d in. Pneumatic seat height adjustment - 26 - 31 h in. Overall dimension - 25.5 W x 25.5 D x 42.5 - 51 H in.