9mm Brazil Grade AA Genuine Natural Blue Lace Agate beaded bracelet. It is believed that blue lace agate symbolizes freedom & serenity, which lowers stress levels and, in turn, can boost your immune system. 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. Blue Lace Agate Beaded Bracelet