Provide a quiet, non-disruptive way for kids (and adults) to release energy with Bouncybands. Made from heavy-duty, latex-free rubber, Bouncybands attach to the legs of a desk and offer a place for feet to rest. Helps relieve anxiety and stress, plus allows active students to stay on task and be more productive, since they can stretch and move while staying seated. Black bands come with support pipes, so they resist sliding down desk legs. One band and two support pipes per package. Band is 20", for desks with legs that are 20" to 28" apart. Desk not included.