If I understand correctly, these are for use in situations where, for various reasons, it is not possible to move the actual toilet waste line. I want to remodel a bathroom where the drain is set into the concrete deck, but it would be a big help if I could move the toilet to the side an inch or two. Can I use this?

Thank you.

Yes but 2" full inches might be a stretch. Installing An Offset Toilet Flange - Drain Plumbing, Soil Pipe

Check with plumbing supply or go to Home Depot or Lowe's. They carry them.