These NDSU Bison Stud Earrings are small, light weight and comfortable. They come 3 pair per pack and measure approximately 0.25 in in diameter. NDSU Bison Stud Earrings are great jewelry accessories for games, graduations, events and more. FEATURES: NDSU Bison logo. Silver finish. 3 pairs per pack. Comfortable. Non-irritating and hypoallergenic. Great for football games, softabll games, basketball games, baseball games or any other event. Officially Licensed. Spirit Gear Central.