For a fun way to get your heart pumping try the Champion Sports Swing Ball Set. Simply put your ankle in the ring, swing with your leg to get the toy moving, and jump over the ball and cord. See how long you can keep it going without missing a jump. Each swing ball features a 5.5'' diameter ankle ring with an 18'' long cord. The set includes one swing ball in each of the following colors: red, orange, yellow, green, blue, and purple.