Mothers Day Gifts Silver-Tone Purple Glass Beads Complete Full Charms Beaded Bracelets Jewelry Mothers Day Gifts Mothers Bracelets Purple Beaded Bracelets To find the correct length bracelet, please measure the wrist with a tape measure just behind the wrist bone and add 2cm to 3cm for the charms and beads. Size available: 6.3 inch (16cm) fit 6 to 10 years old; 6.7 inch (17cm) fit 10 to 15 years old; 7.1 inch (18cm), smaller adult size; 7.5 inch (19cm), common adult size; 7.8 inch (20cm), common adult size; 8.3 inch (21cm), common adult size;8.7 inch (22cm), larger adult size; 9.1 inch (23cm), larger adult size.