that image of the 4 alligator clips holding a motherboard, the product is probably fine, but i really thing that motherboard image is scaled down and edited to fit, there is no way that is large enough to hold a 12" x 9.6" motherboard, do you really thing that magnifying glass is bigger than that?

this is the cheap competing tool i got: https://www.amazon.com/dp/B0BHHVP467

also have this: https://www.amazon.com/dp/B098PBPX8W

i have been using junk 30W irons with DIY tips made from 8 and 6 AWG wire, as long as it is through hole on a low layer count board i can get the job done