Feature: Sport Stacking with Speed Stacks is one of the most popular sports in the country. Competitor who uses the least time to stack 12 pcs cups will win. Speed Stacks are the only cups permitted for use in WSSA events. It has been proven to help hand-eye coordination and quickness, and train the brain for sports and other activities that require use of both hands. Material:safe and environmental material Includes:12 pcs stack cups Recommended for ages 6 years and up.

• Set of 12 quick stack cups with quick release stem that holds them all together.
• It will help kids improve hand-eye coordination and quickness.
• This stacking game needs quick speed that helps train the brain for sports and other activities.
• High quality with ventilation hole that cause gas convection to help kids to stack quickly.
• Official WSSA Product.

Set of 12 quick stack cups with quick release stem that holds them all together.AMGLOBAL