Each earring comes with a stud ( front ) and a earring stopper (back) attached to a dangle or a shape. This style gives a "behind the ear" dangle rather than a busy dangle in front of the ear, giving a two dimension effect.
Earring stud: Stainless steel
Metal chain dangle and metal chain bead wrap: Stainless steel
White agate gemstone beads. ( Black )
Measurements: See last picture.