Talk:Skeletron Prime/@comment-13858305-20140630202025/@comment-24536273-20140707125646

They are both Post-Plantera gear, which you can get before defeating Skeletron Prime but you have to defeat one of any mechanical boss (That is http://terraria.wikia.com/wiki/Skeletron_Prime http://terraria.wikia.com/wiki/The_Destroyer http://terraria.wikia.com/wiki/The_Twins and http://terraria.wikia.com/wiki/Ocram)