Features:OOTDTY   3D Printer Extruder Hotend 30mm Length 1.75mm Nozzle Inputting Tube, 0.4mm Extruder Brass Nozzle Print Head.Nozzle Throat: Outer Thread - M6; Inner Diameter - 2mm; Length - 30mm; Filament Diameter - 1.75mm; Material - Stainless Steel.0.4mm Extruder Brass Nozzle Print Head: Color - Golden; Material - copper (brass); Input Diameter: 1.75mm; Output Diameter: 0.4mm.Compatibility: compatible with most 1.75mm PLA ABS 3D Printer.5 piece 1.75mm Nozzle Inputting Tube,5 piece 3D Printer 0.4mm Extruder Brass Nozzle Print Head,5 piece Heater Blocks.Specifications: Material:AluminumSize:As Picture ShownPackage Includes: 5x Throat Tube5x Heated Block5x NozzleNote: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thanks for your understandings.