Features: Achieve precise and high-quality 3D printing with our MK8 hotend kit. Made from durable metal materials, including a brass nozzle and aluminum heating block, along with a black silicone sock for added insulation. Perfect for hobbyists, DIY enthusiasts, and professionals looking to upgrade- their 3D printer extruder system. This kit is ideal- for use in a variety of settings, from home workshops to commercial prototyping facilities. Experience smoother and more efficient 3D printing with our reliable and easy-to-install MK8 hotend kit. . Specifications: Item：3D Printer Extruder Hotend Features: MK8 0.4mm Brass Nozzle Aluminium- Heater- Block 20x20x10mm for CR10 Ender3 1.75mm Full Metal Throat with：MK8 Black Silicone Case- Quantity: 1PC/ 3PCS Package Includes: 1PC/ 3PCS Extruder Hotend Kit note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 1cm errors due to manual measurement.