8 Other Reasons Madison Earrings in Silver REVOLVE Sterling Silver Equestrian Horse Bit Earrings Madison Heart Bezel Stud Earrings Madison Heart Bezel Stud Earrings Madison Bit Bracelet Gold. The Madison Bit Collection is our elevated take on equestrian jewelry for the everyday designed to make a statement in and out of the ring. Our Madison Bit Earrings feature an understated, chic pair of dangling horse bit studs. Crafted from waterproof, tarnish free plated brass for lasting brilliance. 30mm x 9mm Rhodium plated brass Tarnish free Nickel free horse bit earrings, equestrian inspired jewelry, horse bit jewelry, equestrian accessories, dainty equestrian jewelry, snaffle bit earrings, horse girl jewelry, horse girl accessory