This heater block is an upgrade for extruder, compatible with FDM 3D printers equipped with extruder like 3 S1, 3 S1 pro, CR10 Smart pro, Sermoon V1, Sermoon V1 Pro 3D Printer. The heatbreak is made of plated chrome copper and titanium . The thermal conductivity of titanium is only 8.7w/(mk), which greatly reduces heat conduction upward and reduce clogs. The copper is 386w/(mk), which will heat dissipation. Greatly print quality during a long-term printing. It has inner hole and outer surface, which is more and stable for material extrusion. It can be applied to all kinds of materials, such as ABS, nylon, , etc., The maximum working temperature is 500C. High Strength-Good comprehensive mechanical propertoes Tensile strength:1.012GPa; Highly -Ra Less than 0.4 roughness inner wall enhances the fluidity of filament. color:Photo color Material:Metal Package Contents: 1 x Heating Block Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.