This is 14k Real Yellow Gold Ball Stud Earrings Top Quality High Polish that have become a classic. You can wear them day-by-day they will match with any close. The earrings are studs with a Push Back and the post length is 8 mm. Balls are 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm 10 mm and12 mm in diameter.