Use RadioGroup when you need to capture user feedback limited to certain options. If you more that 5 options consider using Select instead of RadioGroup, as it provides better UX for large data sets.
Component supports all props from InputWrapper component.
Checkbox has 5 predefined sizes: xs, sm, md, lg, xl. Size defines label font-size, input width and height.
You can get input ref with
ref prop on Radio component: