Gikfun DIY SMD SMT Welding Practice Soldering Skill Training Board Ek7028 XUNKUANER [Polarized Plug] The plug is

[Polarized Plug] The plug is polarized and better than the un-polarized plug adapters

-Chemical assurance: made from silicone materials

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Gikfun DIY SMD SMT Welding Practice Soldering Skill Training Board Ek7028 XUNKUANER [Polarized Plug] The plug isAbout this item After welding, just connect electricity (3 12V) to see the effect. You can quickly judge the welding effect. The welding product is a beautiful water lamp circuit. The back of the board with mm Inch ruler, Easy to measure component This is a perfect Soldering skills training materials for beginners. This Soldering Project requires basic electronic knowledge and hands on ability. We have uploaded the user guide on the Amazon page at