Your elementary school students and staff will "glow" crazy for this amazing Bike Bottle that glows in the dark! Perfect for Field Day, school carnival, Movie Night, and other nighttime events, the 20 oz. water bottle is made from food-safe luminescent polyethylene and is BPA free. Expose the bottle to light and then watch it glow! Includes a push/pull lid in your choice of color and your custom imprint on the front.