Let children bounce their feet and exercise their legs with these innovative bands, which encourage active sitting and relieve excess energy, stress, and anxiety. Easily attach them to desks; the molded, heavy-duty plastic support pipes keep each band positioned at the perfect height. Great for kids with ADD/ADHDA "children will stay on task longer, get more work done, and feel happier when they have a way to move while remaining seated. Best for desks 20" 28" wide. Latex free.