Although i read pdf file, i couldn't understand variants clearly.

I have product that comes in sizes of 200ml, 350ml and 1000ml.

Each one has different rates (lets say 12$,15$,20$)

So, I want to add all these variants under a single product name (e.g Flower of Love) and set one of the variants as default one.

So how can i achive this goal?

Thank you.

Ok, we can close this: I solved it by using Variants and reading PDF again :)