YSYM Big and Tall Tasker

(You save $318.00 )
Ships in 7-10 Business Days

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Named after its inspiration, a certain slightly-taller-than-average Chinese NBA star - Yao Ming, the YSYM was specially designed to suit tall users. The YSYM also offers dual-colored 65mm soft casters, a heavy-duty metal base, extra high 6" cylinder, and a longer seat cushion that provides more support. 12 Year Limited Warranty. Ships Free in 7-10 Business Days.



  • Pneumatic Lift
  • EZ Back Height Adjustment
  • Tilting Backrest
  • Rocking Tilt
  • Infinite Forward Tilting
  • Seat Depth Adjustment
  • Mesh Back
  • Tension Knob
  • Standard is armless - for arm options, see below
  • Standard Carpet Casters or Multi-Surface Soft Casters
  • Weight Capacity 300 lbs.
  • Warranty : 12 year limited



  • Overall Width 28"
  • Overall Height 42-52"
  • Back  19"w x 24"H
  • Seat 23.5"W x 21.5-24.6"D
  • Seat Height 19-25""


Arm Options: 


  • JR-39 (2D Motion) - Height and width adjustable forward slanting T-arms with soft touch width adjustment trigger
  • JR-49 (4D Motion) - Height and width adjustable, forward slanting T-arms with soft touch width adjustment trigger, fore-aft, side-side and inward pivoting arm top
  • AR-81 (1D Motion) - Width adjustable, fixed height polished aluminum loop top arm
  • KR-540 (4D+ Motion) - Height and width adjustable, removable T-arms with 6-way ultra adjustable, omni directional arms top (RP-50) 


Caster Options: 

  • Standard Carpet Caster, size may vary per chair model* (5 per set)


  • Multi-Surface Soft Casters are ideal for wood, tile and smooth or harder surfaces. (5 per set)




Office Master offers the following warranties to the original user. 12 Year Limited warranty unless otherwise specified, all models not classified as 'budget' or 24/7 or heavy duty. 7 Year Limited Warranty unless otherwise specified, all models classified as budget or 24/ 7 or heavy duty. Fabrics and foams are covered by a period of 5 years. All models are equipped to handle sitters up to 250 pounds unless noted otherwise. Warranty does not cover labor. To start a claim contact us at 888-355-4999 for products bought directly from us or Office Master at 877-776-5678