Geometry Gym - Concrete Column Design Component


I am a bit confused with the inputs “Rebar Size” and “Tie Size” within the ggSAPConcreteColumnDesignSectionAtts component. Could you select a range of rebar sizes and input it into the component as I have shown below?

I see that in an example that was posted online it appears that specific numbers were inputted into the component. How does SAP interpret this information?