Our Glow-in-the-Dark Tie-Dyed Spin Tops will be the light of the party! Cheap kids' toys that are great for evening get-togethers, they'll entertain the youngsters for hours. These spin tops are perfect indoor or outdoor toys for kids - children love watching the swirling magical glow. Also creative additions to your party favors, they're a fun and unusual keepsake for each guest to enjoy after the celebration is over. Plastic. 2" Expose items to daylight to activate glow.