What’s in the Box: Hotend upgrade with 0.4mm ruby nozzle installed, 7mm Wrench * 1; Compatibility: Drop-in hotend replacement for Anycubic Kobra 3 / Kobra 3 V2 Combo 3D printers; One For Any Material: The equipped ruby nozzle has great performance in printing highly abrasive materials, less abrasive materials such as PLA, ABS or Nylon are never challenges for it. Ruby nozzle can improve the nozzle service period in an obvious way, keeping you free from replacing nozzles frequently; Optimized for High-Speed Printing: Equipped with a specialized volcano-style nozzle with brass nozzle body that enables fast, smooth filament flow - perfect for high-speed printing without compromising performance; Funnel Shaped Precision Nozzle: The ruby nozzle is carefully cut and polished to a funnel-shaped structure. The mirror polished tip increase print quality and the funnel-funnel shaped prevents material from accumulating in dead corners, reducing the risk of carbonization and blocking of the nozzles. Drop-in hotend replacement for Anycubic Kobra 3 / Kobra 3 V2 Combo 3D printers.