Dodolive®12Pcs Sport Stacking Cup Flyingcup Athletics Toys Sports Educational Gift Scrawl Design,Green is available in Sorting, Stacking & Plugging Toys

What is Sport Stacking?
It's a track meet for your hands at warp speed!
Sport stacking is an exciting new sport where you up stack and down stack 12 specially designed cups in predetermined sequences as fast as you can.
Stack on your own and race against the clock for your quickest time, or compete with friends to see who is the fastest. Get ready to STACK FAST.

Feature:
Includes 12 Speed Stacks competition cups,sport stacking instructions
Shaped for hands of all sizes
Tough memory plastic to retain shape
Vent holes release air for fast stacking
Smooth interior to reduce friction