【Applicable with】:Hardened Steel Nozzles only use for Ender 3 V3 SE/Ender 5 S1/Ender 7 3D Printers , not suit for other hotend kit.

【Wear resistance】:Hardened steel is High heat resistance , can be used with various filaments for printing. which has better corrosion resistance and extends the service life of the high speed printing nozzles.

【Smooth Feeding】: nozzles have high thermal conductivity, smooth inner wall, the inner wall enhances the flowability of filament and makes the extrusion smoother, no leakage, the flat surface and tight connection effectively solves the problem of filament leakage.Improve printing performance.

【Wide Compatibility】: Hardened Steel Nozzles is suitable for most FDM materials such as PLA, ABS, PETG, TPE, TPU, PC, carbon fiber, etc.

【Package include】: 1 PCS Hardened steel 0.4mm nozzles