Speed Stacks Custom Combo Set - 12 Neon Yellow 4" Stacking Cups with Cup Keeper, Quick Release Stem, Pro Timer, VOXEL Glow Mat, 6 Snap Tops & Gear Bag | Free Active Energy Necklace | Perfect for Speed Stacking Competitions, School PE Classes & Family Game Nights

Sport Stacking with Speed Stacks is one of the fastest growing new sports in the country. Stackers up stack and down stack 12 specially designed cups in specific patterns using the patented StackMat to measure and record their best times. Speed Stacks are the only products approved for use in the WSSA sanctioned events and each cup carries the official WSSA seal of approval.