Specification. Material: brass Length: about 50 mm / 1.97 inches Color: Silver Temperature range: 300-500°C Description HIGH QUALITY MATERIAL: The threaded soldering tips are made of the highest quality brass material, which is resistant to oxidation, strong and durable, and corrosion resistant. Easy to use and not easily oxidized. High quality material: The threaded soldering tip is made of the best quality brass material, not easy to oxidize, strong and durable, corrosion resistant. Various models: 3 pieces USB different soldering iron tips (tip, horseshoe, to meet your needs of soldering different shapes of components in different working space ranges. E10 soldering iron tip: This USB soldering tip is suitable for usb soldering iron tip E10 interface battery soldering iron tip threaded soldering iron tip. Multi-purpose set: suitable for a wide range of welding operations. Such as kinds of electronic and electrical repair, circuit board soldering or design, craft and jewelry making. The soldering iron kit is also perfect for campus and classroom electronic lab work, home DIY production or office wiring design. Product List. 1*soldering iron tip 1*Cleaning sponge