Features 1、[High Efficiency] Spot welding pen uses thick copper platoon, which is beneficial to improve work efficiency and is suitable for long term use. 2、[Good Heat Dissipation] Integrated design, exquisite workmanship, beautiful and clean, and good heat dissipation effect, to meet your various need. 3、[With Double Springs] There are double springs on the handle, and each soldering pen can be expanded and contracted independently. 4、[Labor Saving] This spot welding pen is feel comfortable, which is durable, stable and reliable, wear resistant and labor saving, so you can use it with confidence. 5、[Simple To Use] Integrated limit switch, and can be one handed operation, no pedal required, suitable for 18650 battery spot welding machine. Specifications Item Type: Spot Welding Pen Soldering Pin Size: Approx. 50 x 3 x 3 mm / 2 x 0.1 x 0.1 in Product Size: Approx. 150 x 40 x 15 mm / 5.9 x 1.6 x 0.6 in Material: Metal iron, copper Weight: Approx. 259g / 9.1oz Package List 1 x Spot Welding Pen 2 x Spring 2 x Terminal 1 x Hex Wrench 1 x Manual