This MK8 extruder hot end kit is designed for 1.75mm filament, ensuring smooth and reliable 3D printing. The 12V/40W heating element is high-temperature resistant (1m/39.4 inch long cable), with a working range of 0 ~+280 ° C (0 ~+538 ° F). Suitable for 3D printers using 1.75mm PLA ABS filament. Improves surface finish, extrusion quality, and overall printability. The flat aluminum heating block measures 20*20*10mm, providing excellent heat transfer. A perfect match for your 3D printer. The extruder features a 4.30mm bore and a 1.75mm filament tube, both made of durable aluminum. <strong>Specification:</strong> Condition: 100% Brand New Type: 3D Printer Accessories Material: Aluminum+Stainless Steel+Brass Nozzle Size: approx. 0.4mm/0.02in Product Height: 30mm/1.18in, suitable for 3D printers with 1.75mm PLA ABS Weight: 95g/3.4oz MK8 extruder hot end kit, white line for thermistor, red line for 12v/40w heating element. <strong>Parts List:</strong> 1*Aluminum Heating Block Kit for Extruder 10*Nozzle 10*Piping