If you are a ring lover and you do not know your ring size, here is the solution. 

Most rings come in US sizes. Use this easy to use adjustable plastic ring sizer to determine your ring size in US Size. 

This ring sizer is 5 inches long and ¼ inch wide, which is reusable. It measures whole and half US ring sizes, from size 1 to size 17 and comes in a pouch with instructions.