A smooth bobbin is critical to your fly tying endeavours, and true to its name, the Dr. Slick Glass Bobbin is one incredibly smooth performer. Its Delrin feet grip both ends of your thread spool securely, yet allow perfectly tensioned rotation on demand; meanwhile, the dual glass inserts provide precise, super-smooth thread application to the most delicate patterns, regardless of the angle required. The rounded glass edges are far less likely to contribute to mid-operation line breakage than the sharper angles common to traditional bobbin inserts. Until you actually tie a few flies with the Dr. Slick Glass Bobbin, you may find it hard to believe that it can make that big a difference in your craft – but it absolutely will.