●Quality: This is a 3D printer heat block kit. High temperature and abrasion resistant, durable and will look exactly as shown ●Material: Aluminum alloy ●Compatible with 3D Printers: Ender-3 S1, Ender-3 S1 Pro, CR-10 Smart Pro, Sermoon V1, Sermoon V1 Pro ●Leak Proof: The nozzle and throat pipe are seamlessly connected to prevent material leakage ●Service: If you have any questions about the product, please feel free to contact us. We will reply you within 24 hours