Features:This nozzle kit includes 1x Bimetal heatbreak, 1x plated copper nozzle , 1x plated copper heater block, 1x heater tube, high temperature thermistor sensor and 1x silicone sock (if your printing temperature is over300C, please remove the silicone sock before printing).for Ender 3 S1 Ender 3 S1 PRO, CR10 for Smart Pro, Sermoon V1 , Sermoon V1 pro 3D Printer.Stainless steel version:260 high temperature printing.for Titanium version:High temperature printing below 300 , for titanium alloy material upward can reduce heat conduction.Bimetal version:High temperature printing below 300, for titanium alloy can reduce upward heat conduction, chrome copper has better overall performance, and has the characteristics of accelerating upward heat dissipation. Specifications:3 Types optional:Name: Standard Heating Block Kit Throat material: stainless steelCompatible Model: Ender-3S1 Name: High Heat Block KitThroat Material: for Titanium Alloy (TC4)Compatible Models: Ender-3 S1 Ender-3 S1 ProCR-10 for Smart ProSermoon V1 Sermoon V1 pro Name: Pro High Temperature Heating Block KitThroat material: copper plating + for titanium alloy (tc4)Compatible Models: Ender-3 s1 Ender-3 S1 ProCR-10 for Smart ProSermoon V1 Sermoon V1 pro Note:No retail package.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes:3 Types optional:Stainless steel :1x Ender3 s1 aluminum heating block1 x Brass Nozzle 0.4mm1 x Stainless Steel Throat with Tubing1 x Thermistor1 x Heater1 x ender3 s1 black silicone for casefor Titanium :1 x Ender3 s1 copper plated heating block1 x 0.4mm cr6 copper plated nozzle1 x for Titanium Throat1 x Thermistor1 x Heater1 x Ender3 s1 Black Silicone Cover Bimetal :1 x Ender3 s1 copper plated heating block1 x 0.4mm copper plated nozzle1 x Bi-Metal Throat1 x Thermistor1 x heater1 x Ender3 s1 Black Silicone Cover Our products are made with the splendid quality materials and are designed to provide you with the best possible user experience.