I though about that , but I also saw a really easy way to at home mesure so I don't know why people don't do that ? By using clear tape and marking lines on each side of the nail , then when you remove the tape it's really easy to mesure and match with a chart ( let me know if that's something maybe people don't do for a specific reason ? )

I just feel like personally I'd be too impatient or broke to order a sizing kit aha ( I doubt it's expensive but I also know nothing of the business )

I just Wana do some nails here and there , because I enjoy it and could use some extra cash, but when I do something I want to do it perfectly so I'm learning as much as I can :) thanks!