Package includes: 15 PCS Brass Nozzles ( 7PCS 0.4mm, 2PCS 0.2mm, 2PCS 0.6mm, 2PCS 0.8mm, 2PCS 1.0 mm). Compatible Models: These nozzles kit is only compatible with for Neptune 4, Neptune 4 Pro. High-temperature resistance Good thermal conductivity: The roughness of the inner wall of the pipeline Ra Less than0.4, reducing blockage, high-temperature resistance, fast heat conduction, and more stable printing. Smooth inner wall without burrs and Smooth extrusion: The inner wall enhances the fluidity of consumables, has a low viscosity coefficient, is not easy to plug, and extrudes more smoothly. Better Compatibility and Applicability: Works with most FDM printing materials, such as PLA, ABS, PETG, TPE, TPU, PC, etc. Material: brass colour: Gold Package Contents: 15 x Nozzles Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.