What my supplier says:

There is approximately 12" of amber on this adjustable strand. The beads are strung on a phthalates-free elastic cord, and the sterling silver spring-ring clasps can fasten in between any two beads on the strand. The cord will wrap around your leg 1 ½ to 2 times, and can be adjusted snug enough that it can be worn while exercising!

Baltic amber must be worn touching the skin. Ideally, it should be worn directly on top of the most painful area of the knee. When putting the strand on, be sure the black cord does not come in between your skin and the amber. To achieve a therapeutic benefit, it should be worn as much as possible, including overnight.

To measure for the best fit, wrap a tape measure all the way around your leg at the spot the Baltic amber needs to be worn. Then find where your size falls within the size ranges we offer.