Features: 1.REPLACEABLE and PRACTICAL: Easy to install and replace. Special design for long term printing products can effectively avoid nozzle damage in the middle of printing and affecting printing 2.LONG LASTING: MK8 nozzle is made of die hardened steel, which is heavy duty and more resistant to high temperature and corrosion, which can effectively extend the service life 3.ACCURATE DESIGN: 3D printer nozzle, with easy to identify size, can produce consistent printing and glossy polishing. Reduce the resistance of the corners and avoid the use of rounded corners to block the filaments, which can effectively prevent the print head from leaking 4.APPLICABILITY and COMPATIBILITY: MK8 extruder nozzle is suitable for Makerbot CR 10, for MK8 Makerbot, for Reprap I3, compatible with all 1.75mm/0.07in PLA ABS 3D printers 5.BASIC PARAMETERS: Input diameter is 1.75mm/0.07in, output diameter is 0.4mm/0.02in, thread is M6, hex diameter is 6mm/0.2in specification:Item Type:3D Printer Accessories Material: Brass Input Diameter: Approx.1.75mm/0.07in Output Diameter: Approx. 0.4mm/0.02in PackageList: 8 x MK8 Nozzle 10 x Silver Cleaning Needle 1 x Cleaning Needle Tube 1 x Storage Box