Ergonomic Chair, Weight Capacity 450 lb, Material Vinyl (Antibacterial), Seat Height Range 21 in to 31 in, Color Black, Cushion Memory Foam Triple Layer, Seat Width 19 in, Seat Depth 17 in, Seat Tilt Backward 10 Degrees , Seat Tilt Forward -3 Degrees , Back Height 13 1/2 in, Back Width 17 in, Base Reinforced Nylon Base, Back Tilt Backward 80 Degrees , Back Tilt Forward 105 Degrees , For Workbench Ht. Yes, Number of Casters 5, Number of Glides 0, Foot Support Y, No, Standards ANSI/BIFMA