The Ninja Leader is a leader system with a strike indicator. Easy to use for the beginners. Ready to fish, just add a desirable tippet and flies. Works great with 2X-7X tippet sizes. Just add tippet to the Tippet Ring. The Ninja strike indicator with unique Slide & hold system which makes it easy to adjust the depth. The Ninja Strike indicator is formed in a streamline shape outlined by smooth curves to reduce air resistance.