The stone mask transforms people into vampires and prevents them from growing old. It also makes them weak to the sun, unleashes human potential, weak to hamon, and can withstand significant damage. JoJo vampires are typically seen sucking blood with blood veins in their fingers. but they also infrequently show up with their teeth sucking blood. The user must put on the stone mask and splatter blood on it in order to activate it. The mask turns the wearer into a vampire when it activates.