3D Printer Parts E3D V6 Back Screw With Cooling Fan Double-Head Mixed Color Extruded Aluminum Block Kit

1. Rated voltage: 12V 2. Feeder: long-distance feeder 3. 2 in 2 out-dual extrusion system 4. Heating wire: 12V, 40W, length 1 meter 5. Heating block: 16 x 16 x 12mm 6. Cooling fan: 30 x 30 x 10mm, with bracket