The KM18 Pro with Sentinel SmartTouch Controller is a Steel Chassis, Ceramic Fiber Knife Kiln with embedded Heating Elements in the Top and Side Walls. It measures 6.5″W x 5.25″H x 18″D inside. Easy lift, Guillotine-style Door. The KM18 Pro Kiln is rated to 2350°F. It fires on 240 Volts and has a NEMA 6-30P Cordset. Rated to 5040 Watts. Black. Door Switch included.