Boss Modern Office Chair w/Chrome Arms- (B331-BK)

Five key benefits CaressoftPlus vinyl upholstery: the seat and back are finished in ultra-soft CaressoftPlus vinyl for an easy-to-wipe, durable surface. Chrome arms: fixed chrome arms provide supportive, comfortable arm rests. High crown chrome base: a 27-inch high crown chrome base adds stability underfoot. Pneumatic height adjustment: a pneumatic gas lift lets you set seat height to suit your desk and posture. Upright lock and tilt tension: lock the back upright for support, and dial in tilt resistance with the under-seat tension knob. Product description The Boss B331-BK is a modern task chair upholstered in black CaressoftPlus vinyl, a soft yet hard-wearing surface that wipes clean and holds up to daily commercial use. Its lines are clean and contemporary, finished with chrome arms that double as comfortable, supportive rests during long stretches at the desk. Underneath, a high crown 27-inch chrome base provides a stable footprint, riding on 2-inch dual-wheel nylon casters for smooth movement across the floor. The pneumatic gas lift adjusts seat height so you can find a sitting position that matches your workstation, while the spring tilt mechanism lets the chair rock and recline. An upright locking position holds the back in place for steady support when you need to stay focused, and the tilt tension control knob located under the seat lets you customize how much resistance you feel as you lean back. The chair supports users up to 275 lb and is MAS Green certified and compliant with California TB117-2013. Adjustments & features Pneumatic gas lift for seat height adjustment Spring tilt mechanism Tilt tension control knob (located under the seat) Upright locking position Fixed chrome arms High crown chrome base, 27 inch Dual wheel nylon casters, 2 inch Specifications Back Adjustment No Arm Type Fixed Mechanism Type Spring Tilt Infinite Lock No Knee Tilt No Tilt Tension Yes Pneumatic Gas Lift Yes Upright Lock Yes Seat Slider No Chair Base High Crown Chrome 27 Inch Casters Dual Wheel Nylon 2 Inch Weight Capacity 275 lb Certifications MAS Green Certified; CA TB117-2013 UPC 751118331011 Who this chair is for The B331-BK suits commercial offices that need a clean, modern task chair with wipe-clean upholstery and dependable height and tilt adjustment, and it works equally well for home-office and remote professionals who want a contemporary chair with chrome detailing and a 275 lb capacity for everyday desk work. FAQ What is the upholstery made of? The seat and back are upholstered in black CaressoftPlus vinyl, an ultra-soft, wipe-clean surface. How does the seat height adjust? A pneumatic gas lift raises and lowers the seat so you can match it to your desk and posture. Can I lock the backrest? Yes. The chair has an upright locking position, and a tilt tension knob under the seat lets you set how much resistance you feel when leaning back. What is the weight capacity? The chair supports users up to 275 lb. Does it have arms? Yes. It comes with fixed chrome arms. Shipping 🚚 Free shipping within the continental United States, direct from the manufacturer.