Size(inch) Product Dimension:21.3"L x 21.3"W x 31.1"H Back Dimension:W21.7"xD15.0" Seat Size:W18.5"xD16.5" Seat Height:17.7"-21.7"H Packaging Size:21.6"L x 9.06"W x 20.9"H Weight(Lbs) Gross Weight:18.0 Net Weight:15.4 Capacity:250 Material Type:Sitting Surface Velvet:Seat Padding Foam:Chair Base 5-point base with nylon wheels Frame:Integrated metal frame Gas lift:Lant class 2 Function: Armrest Adjustable:NO Height Adjustable:Yes Recline:Yes(90°-105°) Swivel:Yes Lumber:Yes Rocking:Yes Assembly:Need to assemble Using Area:Home, office and all the places you need