Features： 1、Reliable Work: Having been through workmanship, the nozzle throat enables a large torsion up to 10kg, very reliable. 2、Fine Printing: Smoother and burr free internal surface ensures less back pumping resistance and higher accuracy in printing. 3、Better Design: The front end is made from Ti alloy and the rear end is made from copper, making the heat dissipation simpler. 4、 Match: Suits ly for V6 3D printer, the heatbreak tube has higher hardness and greater durability against wearing. 5、Easy to Install: Comes with a light weight and a compact size as well, the easy installation can be quickly finished in minutes. Specification： Item Type: Nozzle Throat Material: Ti alloy, copper. Heat Resistant Temperature: 450℃-500℃ Product Size: Approx. 22 x 7mm / 0.87 x 0.28in Upper Thread Diameter: Approx. 6mm / 0.24in Lower Thread Diameter: Approx. 7mm / 0.28in Package List： 2 x Nozzle Throat