OMG….
i had no idea what that was…. and after seeing the price tag i know why !! lol

how does that work ? i cant figure out how it worked ….

youtube is awesome……. that is the coolest thing i have ever seen in a kitchen !

This is it: https://www.gearhunder.com/best-vegetable-choppers/
It is a very convenient kitchen tool, I call it onion chopper. Unlike mandoline, it can quickly cut a large amount of vegetables with reduced air contact. Especially onion, it is very suitable to use it for cutting, you no longer cry because of it.