Endorsed by the World Sport Stacking Association (WSSA) for 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. Each set includes 12 Speed Stack cups, Quick Stem and online stacking instructions. SPECIFY: Red or Blue.
Also available in a pack of 30 sets (18728) and a pack of 15 sets (18729). StackMat® Pro stacking surface (18730) also sold separately.