This patented knot snap will make things simple

Here is a patented Quick knot snap that will bring more fun to your fly fishing.
Just 5~6 wraps around snap completes tippet knot while the other end is for flies swap in a second.
You don't need to spend that much time doing knot and changing flies.
Rated 7 lb. Video here is presented with Hitena 3X tippet. $3.99/pack

http://hitenausa.com/super-quick-clip-regular-eye/