Hello! Thank you for visiting my shop from among many others. Galaxy ☆ 10mm Star Charm ☆ Alloy Stone ☆ Blue Each item 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 less likely to cause allergies. It will stay beautiful without turning black ☆ Earrings can be changed for an additional 100 yen. They are also surgical stainless steel ☆