Isomars Thread Cutter is a simple, well-made tool that does it's job quickly & efficiently / inexpensive. Super-sharp Metal blades,corrosion resistant enamel finish. Spring-action jaws for ease of use, size fits neatly in tool or tackle box. Very useful and practical tool for variety of material, fishing line, fabric, thread. Inexpensive and economical enough to own several for different areas of your home, the garage, tackle box, sewing kit, glove box, survival kits, etc.