Features: brand new and high quality 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. Package Includes: 3 Types optional: Stainless steel : 1x Ender3 s1 aluminum heating block 1 x Brass Nozzle 0.4mm 1 x Stainless Steel Throat with Tubing 1 x Thermistor 1 x Heater 1 x ender3 s1 black silicone for case for Titanium : 1 x Ender3 s1 copper plated heating block 1 x 0.4mm cr6 copper plated nozzle 1 x for Titanium Throat 1 x Thermistor 1 x Heater 1 x Ender3 s1 Black Silicone Cover Bimetal : 1 x Ender3 s1 copper plated heating block 1 x 0.4mm copper plated nozzle 1 x Bi-Metal Throat 1 x Thermistor 1 x heater 1 x Ender3 s1 Black Silicone Cover Specifications: 3 Types optional: Name: Standard Heating Block Kit Throat material: stainless steel Compatible Model: Ender-3S1 Name: High Heat Block Kit Throat 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 Kit Throat 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!