18 mm Medium Dome Red Glass Eyeball Magnetic Earrings

Medium dome red glass eyeball magnetic earrings are held on the ear with two 13 mm enamel painted ceramic magnets; one is attached to the earring and one that goes behind the ear to hold it on.
They are 18 mm wide and 8 mm high.

The most comfortable non-piercing earrings you'll ever wear.

Need extra or stronger magnet backs? They are listed here:  

https://laurawilsongal.com/products/extra-magnetic-earring-and-eyeglass-holder-backs

If you have misplaced your metric ruler, remember that 13 mm=1/2 inch.
Remember: The wider the magnets, the more comfortable the earring is.
If you are allergic to nickel, order only earrings that have both enamel painted ceramic magnets front and back since the neodymium magnets are plated with nickel.