This beautiful bracelet is made with 10mm or 8mm natural Opaque Tanzanite Quartz beads. Many believe that Tanzanite gems can help rid one of old patterns & destructive behaviors & help them move into a new, more rewarding phase of life. TO MEASURE YOUR WRIST: You will need a flexible measuring tape OR something flexible to wrap around your wrist & a ruler (See example in pictures). Wrap the measuring tape around your wrist, making sure to wrap it all the way around your wrist. We suggest measuring your wrist in the area you ultimately wish for your bracelet to sit. Tanzanite Beaded Bracelet