This is how to measure what size bracelet will fit you from our studio.
Take a existing bracelet that fits you (does not have to be a Boyd bracelet), lay on top of a ruler or tape measure. Measure bracelet at the widest point and inner dimension only. 

Any questions please feel free to call 858.386.3511

Extra Small -2"
Small- 2 1/4"
Medium - 2 1/2"
Large - 2 3/4"
Extra Large - 3"

Photo shown is a 2 1/2" size Medium

this bracelet is not for sale on this page but it is for sale on our site