1Reliable in Use: Thanks to the fine workmanship, the nozzle throat with 0.3 inner hole finish enables a large torsion up to 10kg. 2No More Leakage: Consisting of 2 parts, the bimetal heat break has less connector to effectively prevent leakage, very reliable. 3Great Materials: The front end is made from Ti alloy and the rear end is made from copper, making the heat dissipation simpler. 4Perfect Fitting: Suits perfectly for CR 6 SE 75mm hot end, the heatbreak tube has excellent durability against wearing. 5Easy to Install: Comes with a light weight and a compact size as well, the easy installation can be quickly finished in minutes.2 xNozzle ThroatItem Type: Nozzle ThroatProduct Material: Ti alloy, copper. Heat Resistance Temperature: 450 - 500Product Size: Approx. 30 x 6mm / 1.18 x 0.24in, M6 thread. Application: For CR 6 SE modelApplicable Consumable Diameter: Approx. 1.75mm / 0.07in