Hey kids, let's stack some cups! Well, not just stack 'em...Speed Stack 'em! Touted as a "new sport," the challenge is to stack cups in predetermined patterns as quickly as possible. Hours of endless fun! This set includes 12 plastic orange "competition cups" (with holes in the bottoms for extra speed!) with the "Speed Stacks" logo, a carrying bag, a mat to do your speed stacking on, a special timer (with test batteries), and a training DVD. This set is endorsed as "the official sport stacking equipment of the WSSA (World Sport Stacking Association)."