SUPERIORBAND + SPINBOARD = Ballet Dancers Dream Bundle SuperiorBand = Best Selling Ballet Stretch Band on Amazon Developed for the Stretch Training that is required in Classical Ballet, Contemporary Dance, Gymnastics and other sports. Also used in Physical Therapy to increase Flexibility and Range of Motion. SpinBoard = Pirouette, turn and spin training is fun and easy with SpinBoard. Promotes proper leg, body and arm positions during spins and great for head spotting practice. Instructional videos are available.