Note: Please screw on the nut so that the soldering iron can heat up! ! ! Do not remove the nut, thank you. SET1 :1 Soldering iron with 1 welding tips SET2 :only 2 welding tips without Soldering iron SET3 :only 1 welding tips without Soldering iron 1. Press and hold the switch for more than 2 seconds to turn on the soldering iron and heat up and cool down quickly. 2. Small and exquisite, light and easy to carry, easy to operate, convenient and practical. 3. High quality ABS+ stainless steel, will not rust, not easy to age, strong and durable. 4. Small tip makes it ideal for SMD work and other small welding jobs. Specification: Size: About 160*19.8mm/6.82*0.78inch Color:Gray head Material:ABS+Stainless Steel Power:USB 5V/2A, 8W