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 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 printers. Quantity: 15 pcs per lot (5 pieces 1.75mm nozzle inputting tube, 5 pieces 3D printer 0.4mm extruder brass nozzle print head, 5 pieces heater blocks hotend). Specifications: Material: steel + copper. Weight: 55g. Size: as shown in picture. Note: Please allow 1-2cm errors due to manual measurement. Please ensure you are comfortable with this before ordering. Due to differences between monitor displays, the picture may not reflect the actual color of the item. Package includes: 5 pieces 1.75mm nozzle inputting tube, 5 pieces 3D printer 0.4mm extruder brass nozzle print head, 5 pieces heater blocks hotend.