Perfect for sit-stand desk, the Circulation Stool combines style and comfort in a unique, modern package. Sleek design features a perforated pattern for excellent ventilation. Black polypropylene seat and back provide contoured for natural support and comfort. Seat features a 16-degree slope for a natural seating position and is pneumatically adjustable from 20" to 29" high, making it ideal for modern sit-stand workstations. Independently adjustable footrest adds comfort. TAA-compliant stool rolls easily on a five-star base with 2" casters. Optional arms made of tubular steel are not included.