Speed stacks cup stacking set, 12 cups with cup stem holder

Speed Stacks Official Sport Cup Stacking Set, Green - 12 Cups and Holding Stem. Top Grade Materials, Low Friction. WSSA Approved Speed Stacks. Help kids develop motor skills, ambidexterity and agility. Using both hands while sport stacking promotes awareness, focus and rhythm. 12 cups, made with high-quality materials and specially designed to minimize friction between cups while sport stacking and reduce stacking time. The only cups endorsed by the World Sport Stacking Association (WSSA). Winner of a 2018 Family Choice award - The Best in Children and Parenting. Comes with a quick release Stem holder. No keychain with QR code.