What do you call two sisters who look alike but have a two year difference at birth?

Two sisters who look alike but have a two-year age difference are often referred to as "look-alike sisters" or "similar-looking sisters." If they are born of the same parents but at different times, they may also simply be described as "siblings" or "sisters." If they share identical genetic traits, they might be referred to as "fraternal twins," although technically, twins are born at the same time.