This band allows students to have an outlet for excess energy while working, alleviating anxiety, hyperactivity and boredom. This increases focus and academic performance. It allows kids to quietly move, while enabling them to stay on task and be more productive.Details:BlackStretches to fit chairs with legs 17"-24" apartSafety tested and latex freeGreat way for students to relieve anxiety or extra energyRecommended for ages 10+