Compatibility: Our hardened steel nozzle compatible with for 3 3D Printers, offering a consistent printing experience across various setups Craftsmanship Redefined: Crafted from high-quality hardened steel, these 3D printer extruder nozzles have better thermal conductivity and high hardness, enduring extreme temperatures and sustaining wear for consistent, long-lasting performance across a spectrum of printing projects Fluidity in Creation: The nozzle's meticulously designed flow profile guarantees an uninterrupted material flow, maintaining a consistent extrusion rate. Smooth inner wall without burr, minor viscosity coefficient, smoother tapping. Say goodbye to frustrating printing halts due to clogging - this nozzle ensures a smooth and reliable printing experience. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Hardened Steel Package Contents: 6x 0.4mm hardened steel nozzles 5x 0.4mm nozzle cleaning needles 1x curved pair of tweezers 1x wrench 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.