Make slime that goes from blue to purple to blue again with Elmer's Color Changing Liquid Glue! That's because this craft glue changes colors when exposed to sunlight. It's a specially formulated washable glue that's safe and nontoxic, making it an ideal choice for kids. And while it's great for creating playful glue slime, it also adds a transformative touch to arts and crafts. Watch the glue change color when decorating, painting, and gluing for endless creativity.