It is made of zinc alloy. This nose and ear stud is size 37mm x 26mm. Nose and ear studs are one of the most popular piercings for both men and women. These studs are trendy and perfect for everyday wear. Made of zinc alloy, these studs are strong and durable. The length is 37mm and the width is 26mm. These studs are perfect for all types of piercings and can be worn for all occasions.