Package includes: 15 pcs brass nozzles (7 pcs 0.4mm, 2 pcs 0.2mm, 2 pcs 0.6mm, 2 pcs 0.8mm, 2 pcs 1.0mm). Compatible models: This nozzle set is only compatible with Neptune 4, Neptune 4 Pro. High temperature resistance and good thermal conductivity: The roughness of the inner wall of the pipeline Ra is less than 0.4, which reduces blockage, high temperature resistance, fast thermal conductivity, and more stable printing. Smooth inner wall without burrs and even extrusion: The inner wall improves the flow of consumables, has a low viscosity coefficient, is not easy to plug, and extrudes more evenly. Better compatibility and usability: Works with most FDM printing materials, such as PLA, ABS, PETG, TPE, TPU, PC, etc. Material: Brass Color: 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 allowed measurement error is +/- 1-3 cm.