Each Set includes 12 official Speed Stacks cups, which are approved for use in WSSA competition.
Speed Stacks are the only cups permitted for use in WSSA sanctioned events and each Speed Stacks cup carries the official WSSA approval mark.
Speed Stacks, Inc.is the worldwide leader in Sport Stacking (formerly known as Cup Stacking).Sport Stacking is an amazing sport of fitness, agility, concentration and quickness.Thousands of teachers, administrators, and parents along with millions of kids have experienced the benefits of Sport Stacking.Become part of the movement!