Pneumatic Sit-Stand Stool, Black Seat/Black Back, Black Base. Soft feel integral seat and back is spill-, tear- and poke-resistant suitable for use in regular and rugged applications. Pneumatic lift for easy seat height adjustment. Compact to use in tight spaces. 21"-31" seat height range meets most workbench applications. Forward seat tilt feature for positioning closer to points of operation. Integrated lumbar support with seat. Round steel base designed for stability. Recommended Applications: Industrial; Shop; Workbench; Seat Color: Black; Back Color: Black; Color Family: Black.