Excellent for a variety of hook sizes and tying styles, Half Hitch Bobbin is a perfect match for many fly anglers. This half hitch bobbin has a revolutionary bobbin design that allows you to half hitch and whip finish right on the bobbin barrel. In addition, it features a unique O-ring and thread keeper grip. The Rite Bobbin(R) Half Hitch Bobbin has a click tension adjuster. FEATURES: Half hitch bobbin Revolutionary bobbin design allows you to half hitch and whip finish right on the bobbin barrel Stainless steel thread tube Unique O-ring and thread keeper grip Great for broad range of hook sizes and tying styles Click tension adjuster