3" Hot Knife Tool - The blade is made from thin tough steel with a unique round shape that slices cleanly in any direction.Cuts EPS, XPS, Blueboard, polyethylene, and polypropylene foams. Also cuts Pelican Case foam, but beware as their polyurethane foam gives off toxic fumes when cut with heat! **Requires Crafters Power Supply or Pro Power Station. This item will be discontinued when soldout!