ntroducing the Olive hoops - our new team favorite. Classic, functional, and fun. These lightweight hoops go with any outfit. - Measures 15mm in diameter - Heavy 18kt Gold Plate over brass with e-coating for extra longevity ** Our pieces are plated 1 micron thick, industry standard is .125. Quality is extremely important to us, and we wanted to ensure these pieces will last and work well for sensitive ears.