Features: 1.LONG LASTING: The 3D printer nozzle is made of durable brass, and the nozzle cleaning needle is made of stainless steel, which is heavyduty and has a long service life 2. 0.4MM GOLDEN NOZZLE: The extruder nozzle can effectively prevent the print head from leaking and produce a consistent printing effect with a gloss. Reducing the resistance at the corners and avoid blocking the filament with chamfers 3.EXCELLENT CLEANING NEEDLE: The nozzle cleaning needle is very flexible, strong, easy to bend the needle into a nozzle without breaking. Ideal for dealing with nozzle clogging at the hot end of a hard extruder 4.PRACTICAL COMBINATION: Needles are designed for 0.4mm/ 0.02in 3D printer nozzles, including for Makerbot, for CR 10, for Ender 2, for Ender 3, etc. These needles are also suitable for all nozzles 5.BASIC PARAMETERS: Input diameter is 1.75mm/ 0.07in; output diameter is 0.4mm/ 0.02in, external thread is M6, thread length is 4mm/ 0.2in specification:Item Type:3D Printer Nozzles Material: Brass Input Diameter: Approx. 1.75mm/ 0.07in Output Diameter: Approx. 0.4mm/ 0.02in External Thread: M6 Thread Length: Approx. 4mm/ 0.2in PackageList: 10 x Stainless Steel Nozzle 10 x 0.35mm Stainless Steel Cleaning Needle 1 x Cleaning Needle Tube 1 x Storage Box