The Stone of strength. Black onyx is the stone you need if you're under stress. It helps to absorb negative energy while promoting strength.
HOW DO I MEASURE MY WRIST?
Use a paper measuring tape to measure around your wrist. if you do not have one, you can use a piece of string to wrap around your wrist & then measure the length with a regular ruler.
Do not pull the paper measuring tape or the string too tightly.