Take a load off your feet in the office, warehouse, or workshop. Get comfortable! This affordable, all-purpose rolling stool has a swivel seat made of one inch thick black polyurethane. Adjustable in height from 17"–25", it also features a gas-lift mechanism controlled by a handy lever. Reinforced nylon base provides excellent stability and mobility. Locking casters offer superb range of motion and stability. Also includes non-slip floor glides and accepts Alvin height extension ring kits. Assembly is required.