For rings, you can measure your finger size by yourself.
At TimJeweler, we offer extra small to extra large bracelet sizes (US):
5.5 inches for extra small wrists(kids, teenager);
6.5 inches for small wrists;
7.5 inches for regular wrists;
8.5 inches for large wrists;
9.5 inches for extra large wrists.
HOW TO MEASURE
STEP 1: Measure your wrist with a flexible tape measurements or a strip of paper just below the wrist bone, where you would normally wear the bracelet.
STEP 2: If you are using a plain strip of paper, mark your size with a pen or pencil then use a ruler to measure the length, and give your wrist a loose fit to move around.
Necklace Size Chart
To clean, wipe with soft cloth. Avoid frequent contact with water and strong chemicals, such as detergent, bleach, perfume, etc. Store in a jewelry box or soft cloth.
I gave this bracelet to a dear friend for Christmas and she loved it. She is an artist with an online presence. The bracelet has her business name in Morse code so whenever anyone asks about it, free advertising!