1、☞ This Sprite Extruder Heater Block Kit is compatible with Ender-3 S1 /Ender-3 S1 Pro/CR-10 Smart Pro/Sermoon V1 /Sermoon V1 pro 3D Printer. 2、☞ This heatbreak throat tube is crafted using TC4 titanium alloy metal processing, which boasts excellent thermal insulation properties that effectively reduce upward heat conduction. Its ability to enhance printing quality over extended periods of use is noteworthy. 3、☞ Capable of sustained operation at 300℃, compatible with high temperature filaments like ABS and nylon, enabling greater creative possibilities! Rapid heating facilitates faster printing speeds! 4、☞ What You Get: 1 x 24V40W white heating rod, 1 x High temperature thermal line, 1 x Aluminum heating block. 1 x Titanium Alloy Throat, 1 x Copper-plated nozzle, 1 x Black Silicone Case and 3pcs screws. 5、☞ Smooth feeding without leakage. 45° chamfering design at the rear end thread, smooth feeding, flat and smooth nozzle section, highly matched butt joint.