The Dr. Slick 5" Synthetic fly tying scissor is designed for cutting heavy natural and synthetic fly tying materials. The 5" blades are straight and are serrated to cut straight and handle tough fly tying materials like cutting Glo-Bug yarn, leather, plastic, bead chain, mylar and the tough new Faux Bucktail material. Save you good fly tying scissors for the fine work and take advantage of these economical fly tying scissors for the tough work.