SainSmart Reprap Hot End Hotend V2.0 With 0.5mm &0.4mm nozzle,1.75mm 3D,Mendel For ABS PLA Filament 3D Printer Aluminum Block Resistor Hotend. Wire Strain Relief. Easily assembled and torn down with no glue or ceramic Includes machined aluminum and steel parts, and laser cut wooden parts. Includes pre-crimped wiring. resistance of resistor 4.7. resistor rated power 8W. Nozzle material: Aluminum 6063. Nozzle thred: M10,pitch 1.5mm.