Saddle stool, self-balancing, height adjustable 480 - 660 mm, black. Supplied = pre-assembled, final assembly by customer. Seat height = 480 - 660 mm. Seat diameter = 400 mm. Seat material = polyester, urethane foam. Seat colour = black. Type of height adjustment = gas spring. Frame design = pedestal base. Frame material = plastic. Frame colour = black. Foot plate diameter = 645 mm. Seat design = saddle seat. Seat width = 380 mm. Seat depth = 400 mm. Max. load = 110 kg. Product type = office stools, saddle stools. Dynamic and active sitting due to an angle that pivots around the base joint in a wavelike motion. The stool swings in all directions and is effortless to adapt to your posture optimally. The saddle seat features a recess to relieve pressure on the male genitals. The self balancing swivel stool that rotates 360. Seat made of soft urethane foam with black seat cushion cover. The ergonomically shaped saddle seat features a recess in the front seat area to relieve pressure on th