Bypass, Knot, & Loop Rings. 13x7mm Mother & Baby Dolphin, 3mm Bead, & 1mm Twist Cable Chain Italian Charm Anklet in. 925 Sterling Silver. The featured Italian-made anklet is cast in. 925 sterling silver and showcases 13x7mm mother & baby dolphin charms, 3mm beads, & 1mm twist cable links finished w/ a spring-ring clasp & extender links for secure wear.