Drafting stool features a breathable, mesh fabric that prevents body heat and moisture buildup to keep you cool and comfortable during extended periods of work. Seat is supported by a solid metal back frame with a ballistic nylon wrap for a stable, comfortable back rest. Pneumatic gas lift allows easy seat-height adjustments to help you find the personalized sitting style that suits you and your work environment. 20" chrome footing provides added foot and leg support. The 25" nylon base offers extra stability to the chair by spreading the load over a larger surface area to help prevent tipping. Hooded, double-wheel casters slide smoothly on floors to make it easy to move and shift directions. Drafting stool supports up to 275 lb.Drafting stool features a breathable, mesh fabric that prevents body heat and moisture buildup to keep you cool and comfortable during extended periods of work. Seat is supported by a solid metal back frame with a ballistic nylon wrap for a stable, comfortable back rest. Pneumatic gas lift allows easy seat-height adjustments to help you find the personalized sitting style that suits you and your work environment. 20" chrome footing provides added foot and leg support. The 25" nylon base offers extra stability to the chair by spreading the load over a larger surface area to help prevent tipping. Hooded, double-wheel casters slide smoothly on floors to make it easy to move and shift directions. Drafting stool supports up to 275 lb.