Package Contents: 4pcs Silver Heater Block,4pcs Black Silicone Sock and 1pc Wrench;Easy to Install, Great Replacement for 3D Printer
CR10 Heater Block is a Frosting Surface Oxidation Treatment Solid Aluminum, Strong and Sturdy, Not Easy to Block or Leak, and Stable Output Print
Copper-Alloy is Very Temperature Resilient, and Will Not Start to Soften or Anneal until Way Beyond 500°C, Making it Perfect for the High-Temperature Printing
Silicone Sock: 3D Printer Silicone Sock is Made of Heat-Resistant, Non-Stick Silicone Material, Keeps Your Heater Block Clean, Repels Plastic of Burnt, Blackened, and Build-up, Which Can Extend the Life of the Heater Block and Extruder and Help to Keep the Hotend Temperature Stable
Application: The 3D Printer Parts fit for 3D Printer Ender 3, Ender 3 Pro, Ender 3 V2, Ender 5, Ender 5 Pro, CR-10, CR-10S