Alvin Olympian heavy-duty ergonomic drafting chair is designed for comfort and durability. This height-adjustable tall drafting chair is tailor-made for larger-sized or taller people up to 280 lbs. Ergonomically-contoured molded foam seat is extra-thick with a waterfall edge for maximum comfort. Pneumatic adjustable height control raises and lowers the chair quickly. Included arm rests are height and width adjustable.
Additional features include dual-wheel casters and a 26" diameter polished aluminum base. Seat cushion is 22"w x 21"d x 4" thick. Backrest is 21"w, 3.5" thick, and rises 22" above the seat. Height adjusts from approx. 24" to 28" with included height extension kit. Alvin CH300-40DH Olympian heavy duty ergonomic comfort drafting chair has a 2-year warranty on gas cylinder; 3-year defects in materials and construction (except fabric). FREE GROUND SHIPPING TO 48 LOWER US STATES.