Finally, a tool that all Sport Fishermen can use to tie their favorite knots. Small and light enough to fit in your vest pocket, put in a tackle box or hang from your clothing. Each end has a special function to tie different knots. All Sport Fishermen (Ideal for freshwater and saltwater anglers, fly fishermen and ice fishermen!) will realize benefits. Fly fishermen will especially enjoy how simple the Nail Knot is made with this tool.