legit piston rings?

[yubh8tn]

click

Are these real? The forum's consensus seems to be get NPR rings. Just want to verify this is legit and that I can trust them before I order

 

[yeti]

I’m using these currently, had to check email receipts as I built this motor damn near 10 years ago.

The ones you linked look good

 

[BLUELIGHTSBABY]

sure beats $100+ for total seal.