Features: The nozzle and hose are integrated for quick disassembly and easy replacement. Color coded silicone sleeve identifies nozzle sizes conveniently. The specifications are complete, smooth and oily shape, clear lettering, so that you have good identification. Rapid heating and efficient heat dissipation. International brass process, good thermal conductivity, high hardness, fast heat dissipation. Smooth inner wall of the nozzle, no burrs, small viscosity coefficient, and smoother the wire output. Specifications: Material: Brass Size: 0.25mm, 0.4mm, 0.6mm, 0.8mm(optional) Input Diameter: 1.75mm Temperature: up to 300 Note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions. Package includes: 1x Integral Brass Nozzle