*** Made from eco-friendly ABS material, safe, harmless to human and environment

*** Glows in the dark after being irradiated by an UV flashlight for several seconds; Fluorescence works like fireflies (glowworms), not lights.

*** Easy to control: weight and Size accord with human engineering, brings you fast and smooth feeling. .

*** Educational & unique toy: develops kids intelligence, improves the three-dimensional imagination and hand flexibility

*** Wonderful gift for children & adults, no one falls out of love with speed cube.