16?? diameter base space saving base decreases obstruction in the operating room where floor space is essential.Base weighs 21 pounds and has 3?? scuff resistant casters for ease of mobility1?? diameter stainless steel pole adjusts 52??-94?? with no-lose thumb knob.Base available in 5 different colors. Ideal for departmentalization.Rubber bumpers on end of base legs to help protect walls and other objects from scuffing.6-Hook Model