Features: new and high quality Upgraded your 3D printer with the MK8/V6 kit, for smoother, more precise print everytime. Made from high-quality metal, this kit is durable and long-lasting, ensuring you get the most out of your printer. Whether you are printing prototypes or creating intricate designs, this kit is suitable for wide-range of printing applications. The sock also acts as an insulator for the print head. It will help maintain a constant temperature during printing. The additional cooling combined with reduced radiation of heat from the block and nozzle to the print really boost the ability to print great overhangs and bridge, all while keeping the hotend temperature extremely stable. Specifications: Material:Metal Type:MK8/V6 Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 20x Nozzle 2x Heating Block 4x Silicone Sock 2x Hexagon Wrench