The Ninjago Katana Prop is an important accessory for your childs ninja training. The prop is only 19 inches long so it is small enough for small hands to wield. And no worries, it is made of foam so it wont cause injury. It can be worn with any ninja outfit but it looks best with our Ninjago costumes, which are available separately. Sensei Wu says childhood is the greatest training ground one will ever have!