1. Choose where you want the necklace/pendant to sit on your chest.
2. Take a string (ribbon or any other necklace you already have) and wrap it around your neck, holding it at the desired length.
3. Then take the string and measure against a ruler.
1. Measure up against the skin where you want bracelet to fall
2. If you don't have a measuring tape, use a string o a thin strip of paper, wrap your wrist and then measure with a ruler