Product description 3D Printer extruder nozzle: This set of printer extruder nozzle contains 7 different sizes of print head, totally 16 pieces MK8 extruder nozzles for 3D printer Specification: Color: gold Material: brass Hexagon diameter: 6 mm Screw thread: M6 Input diameter: 1.75 mm Output diameter: 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm Quantity: 16 pieces in total