12Pcs Quick Speed Stacker Cups Fast Stacking Stacks Competition Sport Game Toy<br /><br /><br /><br /><br /><br /><br /><br />Features:<br />Take on the cup stack challenge and try the online phenomenon yourself<br />We've got our own set of professional stacking cups here, made from a strong plastic that won't crumple, but is light enough for speedy stacking attempts<br />It's the ultimate personal speed test and great for improving hand-eye coordination<br />Ideal for attempting the cup stack challenge<br />Special vent holes to release air<br /><br />Description:<br />Material: Plastic<br />Height: Approx. 9.5cm\/ 3.7&amp;quot;<br />Top Diameter: Approx. 5.3cm\/ 2&amp;quot;<br />Bottom Diameter: 7.8cm\/ 3&amp;quot;<br />Color: Blue, Red, Orange<br /><br />Package Included:<br />12 x Quick Stacker Cups<br />1   x  Instructions