Glow in the Dark NeeDoh^® gives groovy a whole new look! In the dark, this groovy glob gives off a green glow that fills your hands with a squish that will blow your mind and mellow you out. Glow in the Dark NeeDoh^® is filled with a non-toxic, dough-like compound that always returns to its original shape. When the sun goes down, lighten up your mood with Glow in the Dark NeeDoh^®!