All metal allows working with up to 300 degrees polycarbonate Celsius and materials requiring higher operating temperatures beyond those supported by plastic extruders and hot end. Tested with , ABS, polycarbonate, nylon and PVA. Materail: Stainless steel, PVC, Nylon Voltage: 12V Power: 40W Color: as shown Filament: 1.75mm Mouthpiece: 0.4 MM Cable length: 1 m Heater Size: 6 x 20mm (D * L) Package Contents: 1 x end / nozzle / heater / thermistor / hot metal tube threaded J-Head. 1 x Heatsink fan shroud with high-speed 12V 0.13A 3010 Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.