Question about Genius Stainless steel bowl set

Hello,
This is totally false and dangerous. Already aluminium is a poor metal and putting it in the microwave considerably increases the risk of sparks and fire, imagine with stainless steel...

I have this set. But not a microwave. I think stainless steel dissolves the radiation in the microwave.
"Stainless steel or aluminium shields the radiation".
Hope the answer helps.
Greetings Beat