A Mammon Chain is a chain created by Mammon that prevents the detection of a Ring capable of emitting Dying Will Flames. It first appeared during the Mist Ring Battle. Viper, by attaching it to his Mist Pacifier, is able to block his Arcobaleno powers and prevent other Arcobaleno from detecting him. In the Future Arc, the Vongola Famiglia members use Mammon Chains to become undetectable to the prying eyes of the Millefiore. The Mammon Chain's technology is also used in Giannini's motorbikes to help the Vongola Choice members' stealth in the Choice battles.