Features: all metal hotend with titaniums coppers bimetallic heatbreak and precisions brass nozzle ensures exceptional thermals stability for high temperatures filaments up to 300°C. machined aluminum heatsink and heaters block feature precise 3mm OD cartridge thermistor compatibility, delivering optimizeds heat dissipation and printing accuracy. for professional 3D printing enthusiasts and engineers requiring upgradeds for Voron 2.4// i3 MK3 series printers. for industrial prototyping, functional nylons/PC prints, and detailed model creation requiring minimal clogging and consistent extrusion. This complete metal throat kit enhanceds printer performances with brass nozzle durability and bimetal thermals management for professional 3D printer access. Specifications: Materials: Metal Size：as picture show Type: A, B(optional) Applicable model: Package Includes: 1Set All Metal Hotend note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.