Features Durable Aluminum Construction - Made from high-quality aluminum, this heat block ensures sturdy performance and excellent thermal conductivity for optimal 3D printing results Dual-Nozzle Compatibility - Designed specifically for dual-nozzle setups, this block enhances efficiency and allows for versatile printing options, maximizing your 3D printer's capabilities Pack of 4 for Convenience - This set includes 4 aluminum heat blocks, providing ample supply to meet your printing needs while reducing the frequency of replacements High Performance Standards - Manufactured in accordance with strict international regulations, ensuring reliability and superior performance during your 3D printing projects Long-Lasting Performance - Built to withstand the rigors of 3D printing, this aluminum block offers a stable structure and extended service life, making it a smart investment for your printer Features: 1、The of the product has been specially treated, which is compatible with the extruder and is a substitute for the old model 2、The fixed block is made of aluminum material, which is sturdy and , with excellent thermal conductivity and long service life 3、The dual-nozzle throat fixing block has high performance according to strict regulations. Blocks are designed and manufactured in accordance with international standards 4、This pack contain 4pcs of aluminum heat block, enough to meet your using needs 5、Aluminum block come with stable structure, excellent performance and long service life Specification: Item Type: Aluminum Heat Block Material: Aluminum Size: Approx. 87 x 16 x 1m / 3.4 x 0.6 x 0.5in Package List: 4 x Aluminum Heat Block Package List 4 x Aluminum Heat Block