Hello! Thank you for visiting my shop from among many others. American Vintage ☆ Turquoise Charm 6mm Turquoise Beads ☆ White ☆ Blue ☆ Each piece is carefully made, but as it is handmade, there may be some slight imperfections. We ask for your understanding when purchasing. Hooks and other parts use Surgical stainless steel, which is unlikely to cause allergies. It will stay in beautiful condition without blackening ☆ Earrings can be changed for an additional 100 yen. They are also surgical stainless steel ☆