The ORIGINAL Bouncyband for Elementary School Chairs increases focus and academic performance by giving children an outlet for excess energy while working. Moving while at work enables kids to alleviate anxiety, hyperactivity and boredom. An independent Clemson University study concluded that students stay on task 10% longer using Bouncybands. Children enjoy bouncing their feet and feeling the tension to relieve their stress and increase their concentration. The patented support pipes on the Bouncyband prevent it from slipping down the chair legs onto the floor, becoming a nuisance like all competitive products. Teachers love how Bouncybands are quiet and don't disturb or distract other students. Winner of Creative Child Magazine's "Product of the Year" and Scholastic's prestigious "Best of" award and 2017 Teacher's Choice award.Details:Black4" x 1.5" support pipe sizeBand fits chairs with legs 13" to 17" apart2 BouncybandsChairs can be stacked and moved as normalEasy to install, no tools requiredLatex-freeSafety testedMade from heavy-duty rubber