Withstands 24-hours of continuous use. This comfortable OFM Continuous-Use Stool is great for facilities and offices that require around-the-clock staffing. Ergonomic design features one-touch synchronized seat/back adjustment and pneumatic control that raises the seat to fit you. Other stool features include: dual wheel hooded carpet casters, footring, and two height extension posts—use post A to raise seat 23–27"H or Post B to raise seat 27–31"H. Stool is available with adjustable-height arms. Optional glides are also available. Meets or exceeds ANSI/BIFMA standards.