Ordering a ring can be a tricky business if you didn't use the right tool. This ring sizer will take the guesswork out. There are many factors that can affect the sizing. Have a quick read on my take in my blog here.
※ If you are thinking of getting a ring from Black Sand Designs, I highly encourage you to get this. Simple instructions are included with the sizer.
Each circle on this sizer can be removed and it goes from size 2.5 to 14 in half size increment. Shipping included.