Features: Brand new and high quality Small size, light weight, aluminum radiators, heating block with integrated tube and replaceable threaded Nozzles. Alloy screws are used to fix the radiators, the radiating and the side surfaces of the heating block with three screws, can be disassembled and replace, which reduces use cost. Aluminum alloy heat sink heat dissipation effect is better. The tube and alloy tube are separated and fixed on the radiators with two screws. Perfect for 3D printing enthusiasts and hobbyists improve their printers performances with improved heat dissipation and precise Nozzles control. Specifications: Material:Metal Package Includes: 1 Set Hotend Nozzles note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before order. 2.Due to the differenceS between different monitors, the picture may not reflect the actual of the item.