Boot stud earrings are the perfect addition to any wardrobe. With effortless style and an affordable price, these are an excellent choice for any fashionista. •Hypoallergenic •Nickel and Lead Free Material/Size Material: 18k gold plated brass (10 times thicker than normal gold plating) Plating: 0.5 micron with e-coating for long term use Length: 11mm