"Tantalus" are big and tall mesh office chairs that can be used at drafting tables. They have a weight capacity of 400 lbs, and include strong base, 3'''' thick seat and a high back, designed by flexible mesh material. Extra features include multiple ergonomics that are available at an excellent budget price.FEATURES:Adjustable ergonomic chair features that can encourage health and wellness in the workplace: lumber depth adjustment, synchro-tilt, seat height, arm height, waterfall seat edge.COLORS & MATERIALS:This extra tall office chair is covered with black fabric upholstery and comes with padded seat, mesh back black metal base and chrome foot ring.CERTIFICATIONS & WARRANTY:These big and tall mesh office chairs are padded with CA117 fire retardant foam. Our office furniture chairs are intended for a standard eight hour, single shift work day for users weighing up to 400 pounds, and are covered by a Limited Manufacturer''s Warranty.ASSEMBLED DIMENSIONS:Overall Dimensions: 27'''' W x 28.5'''' D x 44.25 - 50'''' HWeight Capacity: 400 lbs.Seat Size: 19.5''''W x 18''''DBack Size: 18''''W x 24''''HSeat Height: 20 - 26''''HArm Height From Floor: 28.5 - 37.25''''HArm Height From Seat: 8 - 11''''HSHIPPING:You''ll receive your Big and Tall Office Chairs right at your doorstep via UPS/FEDEX Ground, with tracking provided. If you order 5 or more, we may need to ship the items differently (Curbside or Freight) and will contact you before shipment if we need to make special arrangements. Ordering 25 or more? Contact us ahead of time and we???ll be happy to confirm availability and make delivery arrangements (additional delivery costs or product discounts may apply).ASSEMBLY:Your Big and Tall Mesh Office Chairs will ship with illustrated instructions, making assembly manageable for relatively handy consumers. We recommend using 2 people, confirm you have all the parts and hardware before you begin, and do not throw away any packaging until you have completed the assembly. We suggest building on carpet or protected floors to avoid scratches. We???re also happy to provide assembly services ??? just contact us for pricing!