Only a spider has better thread control.

The RiteTM Bobbin is the only super-functional, micro-adjustable-tension fly tying bobbin on the market today.
Whether you're a beginner or a pro, our bobbins deliver maximum thread control thanks to a unique brass tension wheel and top-quality components. Five bobbin models offer you just the right tool for the job, all made right here in Southwest Montana.
For every fly you tie, the bobbin is in your hand -- make sure it's the Rite Bobbin.