Fiberglass Roman step vs Radius Roman?

[Crickets]

So I was wondering...For an IG vinyl pool-- what is the difference between the Roman step and the Radius Roman step? All I have to go by is a tiny diagram/picture and I can't really tell much. Pictures are always appreciated too. Thanks!

 

[Kmaz]

all roman steps have a radius on the outside. A radius roman step also has an inside radius to match the contour of a radius pool wall. For example , with the popular mountain lake style vinyl liner kits , you would need a radius roman step because there are virtually no straight walls. But with a rectangle you would use a straight roman step.
Kris

 

[Crickets]

all roman steps have a radius on the outside. A radius roman step also has an inside radius to match the contour of a radius pool wall. For example , with the popular mountain lake style vinyl liner kits , you would need a radius roman step because there are virtually no straight walls. But with a rectangle you would use a straight roman step.
Kris

I think I understand! Thank you!