silvertone magnetic earrings with clear cz round - 4mm to 12mm (4 millimeters) (e-1521) jotw this is a pair of great quality cubic zirconia magnetic earrings. it is in all sizes from 4mm to 12mm so you can choose the one you like most. additionally there are images on a model so you can see by reference how these will look on your ears, size is based on the size of the stone! this is fashion jewelry designed to last!