For use with MS1000N Ear Piercing Gun.
Posts for 2000 series earrings are 24K gold plated over surgical stainless steel. Posts for 3000 series ear rings are unplated stainless steel.
All MediSystem earrings (regular and mini) have the same size posts. It is only the head of the earrings that differ in size. Regular earrings are 4 mm diameter and mini earrings are 3 mm diameter.