Handmade in Kyoto, JAPAN Materials : Onyx, Silk elastic cord Diameter about 54mm (Stretch) Head beads : about 10mm Main beads : about 7mm Black Onyx is the anniversary gemstone for the 10th year of marriage. It has been believed that black onyx gives you power to keep trying until you accomplish a goal, overcome any difficults. The gemstone is also used to protect you from crisis. In Japan, Buddhists have Juzu (Prayer beads, Rosary). Kyoto is famous as a producing center of Juzu. We learn such tradition and produce Juzu style Bracelets made of healing stones. Please wear Japanese tradition.