Ergodyne® ProFlex® 1100SF Standard Back Support, Black, 3XL Nitrile Glove ): 27 Wheels: Without Wheels Color:Modern Walnut ): 27 Wheels: Without Wheels Width in Inches: 26 5 Office Chair Back Material: LeatherSoft Office Chair Caster Usage: Carpet Hard Floor Recline: No Recline Recommended Max Daily Usage: 8 10 hours Seat Depth (Inches): 20 Seat Glide: No Seat Material: LeatherSoft Seat Width (Inches): 22 Series or Collection: HERCULES Swivel: Swivel True Color: Black Type of Big & Tall Chair: Executive Warranty Information: 2 Year Weight (lbs Back support has patented power panel positioners for elasticity and is ideal for construction warehousing 1100SF 3XL Black standard back support is adjustable and detachable with the stretchable zig zag stitching