Hot Wire Foam Factory Industrial Hot Knife Kit Includes Knife with 4" & 6" Straight Blades, Shapeable Round & Flat Blades, Sled Guide with 2 Blades Can be used for continuous periods of up to 45 minutes, and much longer if turned off between cuts Lightweight, solid state, with variable heat settings and a 10 foot power cord We offer 220Volt models for use in other countries at no extra charge For fast cuts through polystyrene foams Industrial Knife 4-Inch and 6-Inch Straight Blades Sled Guide with replaceable 12-Inch Semi-Rigid Grooving Blade and 12-Inch Shapeable Grooving Blade Four Hand-Shapeable 12-Inch Round and Flat Blades Cleaning Brush Carrying Case Printed Instructions Large foam sculptures and props Foam core construction Large theatrical and studio props and backdrops Garden dcor, like fake boulders and waterfalls SIP foam panels and EIFS foam insulation The cutting blades and wires will last indefinitely if you let the heat do the cutting Cuts continuously without overheating Solid state (the power supply is right in the handle), with variable heat settings 10-foot power cord Made in China, supported in the USA