BEVCO's Value-Line Breva chair is built to last and offers comfortable seating at an affordable price. The black polyurethane seat and back are anti-bacterial, impervious to water, oil, and most chemicals; puncture resistant and easy to clean. The contoured back is fully adjustable encouraging proper spinal alignment while the convenient handle makes moving the chair effortless. The waterfall seat aids in lower body circulation, improving overall wellness. The pneumatic height adjustment allows you to easily change your seat height from 16" - 21". This chair comes with a sturdy 25" diameter black nylon base. Model comes standard with dual-wheel hard floor casters.