Specification Brand : Newwish BulletPoint1 : The Ender 3 Heater Block Made of high quality solid aluminum. It is not inferior or cheap aluminum, which greatly improves the product performance, good thermal conductivity, corrosion resistance and wear resistance, Durable in use. BulletPoint2 : High-precision CNC processing makes the interface of the heater block smoother and more precise, ensuring that the Heatbreak is tightly connected with the heater block, and at the same time reducing friction and wear between the heater block and other parts, effectively preventing filament leakage,improving overall printing stability and printing quality . BulletPoint3 : The silicone sock made from high temperature Silicone material ,can work for longtime at 280C degree. But PLEASE NOTE if your printing temperature is over 280C degree, please remove the silicone cover before starting printing. BulletPoint4 : Compatible NTC 100K 3950 Thermistor sensor.Compatible MK8 Nozzle. BulletPoint5 : Compatible with CR-10 Series, Ender-3 / Ender-5 Series Original Hotend.Compatible with All Metal Hotend Ender 3 CR-10. After-sales guarantee: each defective item can be replacement for free or refund.If any question, please feel free to contact or QA us, Newwish is committed to providing you with the best service! Color : Black ConnectorType : Cap ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 0747086467630 ExternallyAssignedProductIdentifier2 : 747086467630 ItemName : Newwish Ender 3 CR-10 Heater Block,MK8 Aluminium Heating Block Upgrade with Silicone Socks for All Metal Hotend for Ender 3/V2/Pro/Ender 5/Pro/CR10/CR-10S Original Hotend.(2PCS) ItemPackageDimensions_Height : 0.39 inches ItemPackageDimensions_Length : 5.1 inches ItemPackageDimensions_Width : 4.7 inches ItemPackageQuantity : 10 ItemTypeKeyword : 3d-printer-accessories Manufacturer : Newwish Material : aluminum ModelNumber : nfep-450x280mm NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 10 PartNumber : NEW000068 ProductDescription : Packing list: Ender 3 Aluminium Heater Block X 2 Gift : Silicone Socks X 2 (Temperature can be up to 280 degree.) ProductSiteLaunchDate : 2023-12-08T15:44:19.453Z Size : Ender 3 Heater Block Style : 2PCS Aluminium SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1