Features: and 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 becompatible withe printing).compatible with Ender 3 S1 Ender 3 S1 PRO, CR10 compatible with Smart Pro, Sermoon V1 , Sermoon V1 pro 3D Printer.Stainless steel version:260 high temperature printing.compatible with Titanium version:High temperature printing below 300 , compatible with titanium alloy material upward can reduce heat conduction.Bimetal version:High temperature printing below 300, compatible with titanium alloy can reduce upward heat conduction, chrome copper has better overall percompatible withmance, 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: compatible with Titanium Alloy (TC4)Compatible Models: Ender-3 S1 Ender-3 S1 ProCR-10 compatible with Smart ProSermoon V1 Sermoon V1 pro Name: Pro High Temperature Heating Block KitThroat material: copper plating + compatible with titanium alloy (tc4)Compatible Models: Ender-3 s1 Ender-3 S1 ProCR-10 compatible with 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 becompatible withe 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 compatible with casecompatible with Titanium :1 x Ender3 s1 copper plated heating block1 x 0.4mm cr6 copper plated nozzle1 x compatible with 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