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Black armless task chair with contoured mid-back, thick seat cushion, pneumatic height lever

BOSS Office Products

BOSS Office Products B9090-BK office furniture

SKU CH-26YN-6VYGE MPN B9090-BK

Armless black task chair with pneumatic height adjustment and 275 lb capacity

  • TypeChairs
  • ColorBlack
  • Type SpecificationsBack Adjustment: No Arm Type: Armless Mechanism Type: Height
  • Extra-large cushioned seat for all-day comfort
  • Contoured mid-back delivers spinal support
  • Pneumatic gas lift adjusts seat height easily
  • Hooded double-wheel casters roll smoothly
  • Weight capacity rated at 275 lb

Chair type and adjustability

The BOSS Office Products B9090-BK is an armless task chair with a pneumatic gas lift for seat-height adjustment. It has a contoured mid-back with adjustable back height and depth, but no tilt tension, knee tilt, infinite lock or upright lock. A seat slider is also absent.

Weight capacity and mobility

The chair supports up to 275 lb according to the specifications and 250 lb in the supplier description. Hooded double-wheel casters provide smooth movement on hard floors and low-pile carpet. Buyers who need armrests, a reclining mechanism with tension control, or a higher weight rating should look at other models.

Base material

The chair base is made of nylon, which keeps the unit light and resistant to corrosion. If a metal base is required for heavier daily use or aesthetic preference, this chair does not meet that need.

Highlights

  • Extra-large cushioned seat for all-day comfort
  • Contoured mid-back delivers spinal support
  • Pneumatic gas lift adjusts seat height easily
  • Hooded double-wheel casters roll smoothly
  • Weight capacity rated at 275 lb

Specifications

TypeChairs
BrandBOSS Office Products
ModelB9090-BK
ColorBlack
Type SpecificationsBack Adjustment: No
Arm Type: Armless
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 weight11.79 kg
Package size610 × 584 × 279 mm

Questions about this item

What parts come in the box and do I need any tools?

The chair ships ready to assemble and includes the seat, backrest, pneumatic gas lift cylinder, nylon base and hooded double‑wheel casters; a basic hex key is usually supplied for the few bolts.

Should I pick the Black, Blue, Burgundy or Grey fabric version?

All four colours share the same 275 lb weight capacity, armless frame, height‑adjustable gas lift and adjustable back height and depth; choose the shade that matches your office décor.

What does the 275 lb weight capacity mean for daily use?

It means the chair’s frame, base and casters are tested to support a person weighing up to 275 pounds during normal desk work; exceeding that limit can shorten component life.

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