Get creative with over 100 glow-in-the-dark-stickers of Earth's Mightiest Heroes, including Black Widow, Thor, Iron Man, Black Panther, and some of their most notorious enemies. Packed with cool facts about all their favorite characters from the comics, kids can expand their knowledge of the ultimate Superhero team, and with the glowing stickers inside, create action scenes to thrill both night and day! Light up the sky with the God of Thunder's hammer Mjolnir, soar through space with Captain Marvel, or envision some truly epic team-ups. Avengers Assemble!