If this strip is approximately 3 inches long and there is a space
between the 0 and the 1 of approximately 1 1/2 inches than this is
for measuring sizing stock and ring blank stock.
For sizing a ring simply use a pair of dividers to measure the space
between 1 and any number to figure the amount of material to add or
remove from a ring for sizing. ( example: you need to size a ring up
2 sizes so you use your dividers and measure from 1 to 3 on the
gauge. this is two sizes and the amount to mark on the sizing stock).
For creating a ring from stock you measure from 0 to the size you
need (example: you want to make a flat wedding band in a size 6 you
would measure from 0 to 6 on the gauge). When doing this make sure
you allow for the thickness of the stock.