Juggernaut's Helmet

Juggernaut's Helmet is one of the most commonly known things on Cain Marko's attire

12 bolts hold this helmet on Juggernaut. The bolts cannot by telekinetically taken out as it is bound to Juggernaut's armor. The helmet grants immunity to psychic attacks. This was proven when it deflected Xavier's most powerful psychic attack like nothing.