· THIS IS A GENUINE RoMech OEM REPLACEMENT PART! The blade can be used on RM-005, RM-009, RM-008 hot knifes.· High-quality stamped steel hot knife blade, 2" Cutting length· Heats up in seconds. Lightweight, strong and highly durable.· Designed to cut foam, polyurethane, polyethylene, styrofoam, polyester foam, polyether foam, sponge rubber and cellulose· Designed for the RoMech - Styrofoam Hot Knife, will also work on many other major brand hotknives and foam heat cutters.