Usage Tips:Item Type: 3D Printer Hotend Kit Material: Ti Alloy, Silicone, Nickel Plated Copper, Stainless Steel, Aluminum Alloy Heating Rod: 24V 40W Throat Material: Ti Alloy TC4 Features: High temperature printing below 300 , Ti alloy material can reduce heat conduction. Nozzle Diameter: Approx. 0.4mm / 0.02in Applicable Model: For Ender-3 S1, for Ender-3 S1 Pro, for CR-10 Smart Pro, for Smoon V1, for Smoon V1 Pro printer. 1Wide in Compatibility: Suits perfect for various 3D printers such as for Ender 3 S1, for Ender 3 S1 PRO, for CR10 Smart Pro, for Sermoon V1, for Sermoon V1 pro and more. 2Bimetal Nozzle Throat: Made of TC4 Ti alloy and nickel plated copper, the bimetal nozzle throat ensures reliable work performance to improve printing. 3300 Better Printing: Able to heat up to 300, the 3D printer hotend with good heat conductivity has high efficiency for high temperature printing. 4Standard 0.4mm Nozzle: The 0.4mm nozzle has 1.75mm inner diameter, and the smooth surface enables stable extrusion for filaments of different material. 5Simple Installation: Comes with a light weight and a compact size as well, this extruder hot end kit is very easy to install within several minutes. 1 x S1 Aluminum Heating Block 1 x S1 Silicone Sleeve 2 x M2 x 18 Screw 2 x Plug 1 x Thermistor 1 x Heating Rod 1 x Nozzle 1 x Nozzle Throat