The 2x heavy Ken Sawada XD1 tube double hook is specifically designed to be paired with tube flies. Considered one of the strongest and sharpest tube hooks on the market, a highest quality option made in Japan. Black nickel finish and sproat-style shape. If you are looking for equally strong treble options, see Ken Sawada ST4 Wide Gape Treble and ST3 Tube Fly Treble hooks. Each packet contains 10 hooks.