Features: 1. Accurately anti-leakage, nozzle and throat seamlessly connected to prevent leakage. 2. For better materials, we used a thicker NTC and a good quality heating rod to solve the problem of frequent replacement of NTC burnout, wire breakage and faster heating rod aging. 3. Easy to install NTC with terminal interface, you can directly install and use without additional connection. 4. High quality resistance. 5. 2080 high temperature resistant high quality oxide powder. Specifications: Nozzle: 0.4mm Heating aluminum block: Approx. 20*20*10mm/0.79*0.79*0.39in Thermistor: 1.1 m Heating tube: 1 m 12v 40w M6 * 30mm pipe thread inner hole end diameter (4mm Hole Diameter), depth 25mm The other end has an inner diameter of 2 mm (hole size), a depth of 5 mm, and a screw diameter of 6 mm. With a PTFE tube, the tube is 25 mm long, 4 mm in diameter and 2 mm in diameter. Package List: 1 * MK8 Extruder Set 1 * Wrench 1、Accurately anti?leakage, nozzle and throat seamlessly connected to prevent leakage. 2、For better materials, we used a thicker NTC and a good quality heating rod to solve the problem of frequent replacement of NTC burnout, wire breakage and faster heating rod aging. 3、Easy to install NTC with terminal interface, you can directly install and use without additional connection. 4、High quality resistance. 5、2080 high temperature resistant high quality oxide powder.