If you want to see what's inside it:    • Cheap Noname Portable Spot Welder - d...  
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This is it: https://www.amazon.com/dp/B0C6SW8PX2/...
Same model with a brand on it: https://www.amazon.com/Seesii-11000mA...
Another brand on it: https://www.amazon.com/dp/B09PYLHWP2