The Lewis K614 Safety Ring Twine Cutter is an aluminum ring band with a curved steel cutting blade permanently riveted to it. The cut out design of the back side of the ring band make this tool fit your finger naturally without a sharp straight edge causing discomfort. The safety curved cutting blade has a blunt outer edge and rounded tip to prevent accidental injuries. It is used wherever quick cutting of thread, string or twine is required. The tool is available in a variety of ring sizes from 6-15.