Please let us know once you've placed your Matthew Calvin ring order, and we will reimburse you for the cost of the ring sizer.
To find out your ring size, insert the thinner end of the ring sizer into opening and pull to form a ring shape.
Slip ring sizer onto finger and adjust to give a comfortable fit. Your ring size may be different for each finger. Check that it slips over joints of the finger without difficulty.
Following the arrow guides, read off the indicated size when best fit is achieved.