I used to use $\huge$ and $\displaystyle$ to enlarge some math expressions like integrals in a line. But is there a way to make the math expressions in a specific size?

For example, when I type binomial coefficient $\binom{n}{r}$, the standard size of this expression is kind of small, but using the “displaystyle” makes it too big in a line. Thus I want to only “customize” the size of this expression without affecting other math expressions. Is there a way to do this? Thanks in advance.