Features: Copper and alloy all metal throat, which suitable for printing of high temperature consumables High quality CNC-heating block with good thermal conductivity and high accuracy High quality brass nozzle, high roundness of extrusion hole Standard and accurate size, smooth inner wall, high-precision Equipped with heating rod and temperature measuring wire, more complete Specifications: Item: 3D Printer MK3 Hotend Extruder Nozzle Kit Size: Mixed Cable Length:approx 100cm/39.37in Weight:90g Fit for: for PRUSAi3 MK3 MK3S MK2/2.5 v6 Heatsink Nozzle 3D Printers Material: Metal Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 Set x for MK3 Hotend Kit