RING SIZER
Unless you already know the size of your fingers, any jeweler would be able to measure it for you.
If you want to own a cheap effective tool to do so every time you need, here is a link of a small object you can buy on Amazon:
Unless you already know the size of your fingers, any jeweler would be able to measure it for you.
If you want to own a cheap effective tool to do so every time you need, here is a link of a small object you can buy on Amazon: