Feature 1With fine workmanship and excellent quality, it can be used for a long time 2Portable pocket sized, lightweight and convenient 3Easy to maintain and refill. It uses widely available butane gas 4The soldering pen will melt both silver and gold solder. It can be used as a mini-torch or heat blower 5Great for precision soldering for things such as electronics, instruments, or circuits to a computers motherboard Features: With fine workmanship and excellent quality, it can be used for a long time. Portable pocket sized, lightweight and convenient. Easy to maintain and refill. It uses widely available butane gas. The soldering pen will melt both silver and gold solder. It can be used as a mini-torch or heat blower. Great for precision soldering for things such as electronics, instruments, or circuits to a computers motherboard. Specifications: Material: Plastic + Metal Optional Color: Green, Blue, Yellow, Red Filling capacity: 8ML Temperature: Flame temperature 1300 (adjustable) Soldering iron temperature 450 (adjustable) Use fuel: Pure butane Use time: 35-45 minutes Length: Approx. 15cm / 5.9inch Weight: Approx. 78g Package Included: 1 x Gas Soldering Iron Note: 1. Gas is not included, you need to buy gas locally, and then fill into the soldering iron. 2. This item is not auto-ignite so you need to use your own fire source to start it.