Features:Pack of 5 x 3D Printer Extruder Hotend 30mm Length 1.75mm Nozzle Inputting Tube( for MK8 Makerbot Reprap for Prusa I3 3D Printer) and 5 x 3D Printer 0.4mm Extruder Brass Nozzle Print for 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); Size - 5x13mm; Input Diameter: 1.75mm; Output Diameter: 0.4mm.Compatibility: for all 1.75mm PLA ABS 3D PrinterQuanlity:15pcs/lot (5 piece 1.75mm Nozzle Inputting Tube,5 piece 3D Printer 0.4mm Extruder Brass Nozzle Print for Head,5 piece Heater Blocks Hotend)Specifications:Material: SteelandCopperWeight: 55gSize: As picture showsNote: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.Package includes:5 piece 1.75mm Nozzle Inputting Tube5 piece 3D Printer 0.4mm Extruder Brass Nozzle Print for Head5 piece Heater Blocks Hotend