Pain's / Nagato's Akatsuki Ring - Naruto

Pains Akatsuki Ring. Pain is one of the most powerful protagonists in the Naruto universe and this is thanks in large part to his Rinnegan. He is able to remotely control other bodies through a special metal and he also has a very large amount of chakra and was close to killing Naruto. Also, Pain is an old student of Jiraya. 

The ring is made of steel and features the Zero emblem in Japanese.