Glow-in-the-dark Silly Putty offers the same bouncy, elastic compound that has captivated children since 1950 while adding a new twist of fun. It glows in the dark. Packed in an egg-shaped container, this smooth putty lets children mold, stretch and play to their imagination's content. With its fun ability to act as both a solid and a liquid, Silly Putty Glow encourages children to experiment and challenge their imaginations in the dark. Roll it into a ball and watch it bounce, stretch it out to its limits, snap it into pieces or mold it into various shapes.