The Chain of Loyalty is one of the treasures of Thundera. It is a necklace with four circular images on it. One of Tygra, one of Panthro, one of Cheetara, and one of Wilykit and Wilykat. It is deceptively delicate as Jaga warned Lion-O and if broken, will cause the ThunderCats to fight amongst themselves. When broken, the four images change to resemble the closed eye on the Sword of Omens.