AlphaBetter Adjustable-Height Student Stool, Backless, Supports Up to 250 lb, 35.5" Seat Height, BlackThis stool is a perfect substitute for standing. The stools adjust in 1 1 4" increments. The stool allows students to sit and still use the patented Swinging Pendulum Footrest Bar (fidget bar). The specially designed wide angle base of the stool is virtually tip resistant, even for the most avid learners. Metal swivel glides makes the stool easy to move across carpeted and smooth surfaces to easily reconfigure the classroom.