1PACKAGE CONTENTS: The package includes 24V 40W heating rod and thermal wire, with aluminum heating block, ti alloy copper bimetallic throat, copper plated nozzle, black silicone sleeve 2APPLICABLE MODEL: Compatible with for Ender 3 S1, for Ender 3 S1 PRO, for CR10 Smart Pro, for Sermoon V1, for Sermoon V1 pro 3D printers 3BI METAL THERMAL INSULATION: TC4 ti alloy and copper are used for processing. Ti alloy has good thermal insulation, and copper helps to dissipate heat. Long time printing has obvious effect on improving printing quality 4NICKEL PLATED COPPER NOZZLE 0.4MM: The outer surface of the inner hole is smooth, and the material extrusion is smoother and more stable, can be applied to various materials 5LOW HEAT CONDUCTION: The maximum working temperature is 300 degrees Celsius, and the ti alloy material is upward to reduce heat conduction Item Type: Aluminum heating block kit Heating Rod: 24V 40W Throat Material: Ti Alloy (TC4) Features: High temperature printing below 300 , ti alloy material upward can reduce heat conduction Nozzle Diameter: Approx. 0.4mm / 0.02in Applicable Models: For Ender 3 S1, for Ender 3 S1 Pro, for CR 10 Smart Pro, for Sermoon V1, for Sermoon V1 pro printers 1 x 24V 40W Heating Rod 1 x Thermal Wire 1 x Aluminum Heating Block 1 x Ti Alloy Copper Bimetallic Throat 1 x Copper Plating Nozzle 1 x Black Silicone Sleeve 2 x Screw