i purchased them at my local anime store but I never used them. easy to use, just need a clothing hot iron :) About 3.5 x 3 INCHES each New, Never used adhesive back, ready for iron on! Attack on Titan (Japanese: 進撃の巨人 Hepburn: Shingeki no Kyojin, lit. "Advancing Giant") is a Japanese manga series written and illustrated by Hajime Isayama. The series began in Kodansha's Bessatsu Shōnen Magazine on September 9, 2009, and has been collected into 24 tankōbon volumes as of December 2017. It is set in a world where humanity lives in cities surrounded by enormous walls; a defense against the Titans, gigantic humanoids that eat humans seemingly without reason. The story initially centers on Eren Yeager and his childhood friends Mikasa Ackerman and Armin Arlert, who join the military to fight the Titans after their hometown is invaded and Eren's mother is eaten and Eren swears to avenge her. However, as the story progresses and the truths about the Titans are slowly revealed to the reader, the narrative shifts to encompass Historia Reiss, squad leader Levi, Eren's father Grisha, and other supporting characters....