Speed Stacks Pro Series Black Set (Sport Stacking / Cup Stacking)
Take Your Stacking To The Next Level! Pro Series cups are endorsed and signed by former World Champion Emily Fox and used by current World Champion Steven Purugganan.-- Large center hole improves air venting and reduces down stacking time-- Perforated friction pad reduces sliding fumbles-- Special high impact material-- Official WSSA approved equipmentDeveloped in conjunction with the world's top stackers, they include special features and are approved by the WSSA for competition use. Available in black or clear, they also feature the patented Quick Release stem and include the Stacker Training DVD.Speed Stacks are specially designed high-tech Sport Stacking cups endorsed by the World Sport Stacking Association (WSSA) for competition.