Compatible Models: This hotend is compatible with for Neptune 4 Plus, Neptune 4 Max 3d printers. High Temperature Resistance: The throat tube is made of All-titanium alloy, which can withstand high temperatures up to 300 and supports a maximum printing speed of 500mm/S. Widely Compatibility: This hotend is widely compatible with various filaments, such as 1.75mm PLA, PETG, ABS, ASA, TPU, and high-temp filaments like nylon. Large aluminum heatsink: The heat sink is made of aluminum, which has a larger heat dissipation area and faster heat dissipation speed to less nozzle clogging. Package: 1x Hotend, 1x extra silicone sock, 5x extra 0.4mm brass nozzles. Please check whether the heating rod and thermistor are tightened before installation to avoid printing problems. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:aluminum Package Contents: 1x Hotend 1x extra silicone sock 5x extra 0.4mm brass 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.