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 blue vinyl seat is antibacterial; antifungal and complies with CAL 117. The pneumatic height adjustment allows for stress-free seat height changes from 24" - 29". The stool features a sturdy 22" diameter black tubular steel base with welded footring. Model comes with dual wheel hard floor casters.