Item Type: Nozzle Set Inner Diameter: Approx. 2mm / 0.1in Material: Brass/Stainless Steel Thread: M6 thread Optional Nozzle Specifications: 0.2/0.3/0.4/0.5mm Size: Approx. 0.2mm / 0.01in 0.3mm / 0.01in 0.4mm / 0.02in 0.5mm / 0.02in Package List 5 x Nozzle 1Combining the high thermal conductivity of brass and the high wear resistance of stainless steel. 2Provide 0.2mm-0.5mm products to choose from, the use effect far exceeds the usual 3D printer nozzle. 3In order to improve the printing effect, the nozzle must be as long as possible, the longer the nozzle, the greater the distance between the heating block and the printed model. 4The more the tip, the less the heat radiation to the printed model, which improves the printing quality. 5This nozzle size can be compatible with many heating blocks, such as for MK8/Lulzot/Olson block and so on.