$9.99
Ninja warriors spend a good portion of their life fighting invisible enemies. You might think your child is just kicking thin air when he's doing his martial arts moves, but he's actually keeping you safe from evil bad guys who have mastered the art of ninjutsu. If you really want to help him keep you safe, then you may want to invest in these Child Ninja Assassin Blades. They are designed specifically for slaying enemies that cannot be seen, so your child will have the advantage in fighting any unseen foe.