HDE Cordless Refillable Gas Iso-Tip Blow Torch Soldering Iron Pen Butane Gas for Electronic PC Repair Tool Lightweight, pocket-sized, portable Cordless device with many uses such as mini-torch or heat blower Multifunctional precision soldering for electronics, gold and silver jewelry, or circuits boards to computer motherboards Refillable with Butane gas makes easy work of repairs, welding, jewelry making, hobbies and crafts Simple construction makes precision soldering easy for anyone