I’ve seen it a couple times and thought it looked far beyond my skill level. 🙂 But some friends just gave us a Speed Stacker set of glow in the dark cups, mat, timer, and carrying bag along with a demonstration/teaching DVD. The kids LOVE it, they are hooked and I must say it’s been great for their attention span and hand-eye coordination. From the toddler stacking the cups for fun to the older ones actually timing themselves, they all are enjoying it.