· THIS IS A GENUINE RoMech OEM REPLACEMENT PART! Can used on RM-014, RM-015 and RM-017 rope cutter.· High-quality steel Type-R hot knife blade· Heats up in seconds. Lightweight, strong and highly durable· Designed to cut synthetic fabric, sail cloth, webbing, ropes, cords, and many other materials· Excellent for cutting straight lines of synthetic fabrics on a glass surface