Glow Up T-Shirt Butterfly - PinkThis butterfly glow in the dark tshirt is an interactive tshirt that you can draw on with light! The illuminated tshirt is printed with a special ink that not only glows in the dark giving off an eerie glow, but can also be directly drawn onto with a small penlight. The afterglow of the drawing remains on the tshirt for up to five minutes and then gradually disappears, ready to be drawn on again. You can have endless fun creating illuminous shapes,