Rope clasps, resizable fits any size wrist.
Evil eye and metal ball on a resizable thread in multiple metal colours.
Nazar Boncuk's charm (or evil eyeball) is an "eye" that is usually set on a blue background. It stares at this world to avoid evil eyes and protects you from harm. Since then, people have attached this wicked eye to all evil eyes they wish to protect.
Most commonly, it is just known as a hamsa hand.
The hand is often depicted with an eye in the centre of its open palm, presumably to ward off negative energies, including the gaze of envy.