Small Blue Enamel & Crystal Cross - Stud Earrings (1 Pair) Small Blue Enamel & Crystal Cross - Stud Earrings (1 Pair) Cross is approximately 0.42 x 0.29 inches (HxW). Earring backs are Bullet "Clutch" Style with Plastic Pads. Silver Tone Earrings have a steel post soldered onto the back. Beautiful Crosses sparkle.