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Black mid-back task chair with adjustable T-arms, pneumatic height lever, padded seat and backrest, five-star base on casters

BOSS Office Products

BOSS Office Products B9091-BK Task Chair 250 lb office furniture

SKU CH-ZKHA-199BJ MPN B9091-BK

A mid-back task chair with adjustable T-style arms, pneumatic seat-height control and extra-large cushions rated for 250 lb

  • TypeChairs
  • SpecificationsBack Adjustment: No Arm Type: Adjustable Mechanism Type: Hei
  • Contoured back promotes posture and reduces strain
  • Extra-large padded seat and cushioned backrest deliver all-day comfort
  • Adjustable T-style armrests support arms at the right height
  • Pneumatic gas lift sets seat height for optimal positioning
  • Supports users up to 250 lb with a 275 lb rated capacity

Mid-Back Ergonomic Task Chair

The BOSS Office Products B9091-BK is a mid-back ergonomic task chair designed for office workers who spend long hours at a desk. It features a contoured backrest and extra-large padded seat to promote proper posture and reduce back strain. Adjustable T-style armrests provide customisable upper-body support. The chair is finished in black upholstery to suit professional environments.

Pneumatic Height Adjustment Only

Seat height is controlled by a pneumatic gas lift mechanism, allowing the user to set the chair to a comfortable working position. The specification lists no tilt tension control, knee-tilt function, infinite lock, upright lock or seat slider. Back height and depth are noted as adjustable in the highlights, but the specification table states back adjustment is not available. The base uses hooded double-wheel casters for mobility.

250 lb Weight Capacity

The supplier description rates this chair for users up to 250 pounds, while the specification table lists a 275 lb capacity. Buyers who weigh more than the lower stated figure should verify the limit before purchase. This model does not suit users requiring a heavy-duty rating beyond these numbers. It is available in four colours including blue, grey, burgundy and red.

Highlights

  • Contoured back promotes posture and reduces strain
  • Extra-large padded seat and cushioned backrest deliver all-day comfort
  • Adjustable T-style armrests support arms at the right height
  • Pneumatic gas lift sets seat height for optimal positioning
  • Supports users up to 250 lb with a 275 lb rated capacity

Specifications

TypeChairs
BrandBOSS Office Products
ModelB9091-BK
SpecificationsBack Adjustment: No
Arm Type: Adjustable
Mechanism Type: Height Adjustable
Infinite Lock: No
Knee Tilt: No
Tilt Tension: No
Pneumatic Gas Lift: Yes
Upright Lock: No
Seat Slider: No
Weight Capacity: 275 lb
Chair Base: Nylon 25 Inch
Casters: Dual Wheel Nylon 2 Inch
Shipping weight14.52 kg
Package size610 × 584 × 279 mm

Questions about this item

Which colour option should I choose for the B9091-BK task chair?

The B9091-BK model is the black version; the chair is also available in blue, grey, burgundy and red if you prefer a different colour.

What does the 250 lb weight limit mean for daily use?

The chair is tested to support up to 250 pounds, so it will safely accommodate most adult users during extended sitting periods.

How does the pneumatic gas lift work in practice?

The pneumatic gas lift lets you raise or lower the seat height smoothly with a lever, allowing you to set the chair to your preferred working height.

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