Improve focus and awareness with this basic and silent energetic seating add-on. Fidgety pupils could privately bounce the feet of theirs to further improve concentration while not distracting fellow students. Beneficial to kids with additional wiggles and concentration challenges Durable 8 help pipes easily connect to desk or perhaps dining room table thighs and legs through 20 to 28 up and apart to 1 3/8 circumference Heavy duty rubber band very easily hooks up as well