BEVCO's sturdy construction and modern design of the Versa backless stool is ideal for a wide range of applications, including general office, medical, laboratory and factory. 16” diameter fabric seat complies with CAL 117. The pneumatic height adjustment allows for stress-free seat height changes from 16" - 21". The stool features a sturdy 25" diameter black nylon base. Model comes standard with mushroom glides. Optional casters can be ordered separately.