Hello! Thank you for visiting my shop from among many others. Firefly glass ☆ Dark blue ☆ 10mm Luminous type that glows in the dark Flower charm ☆ Blue The firefly glass sparkles beautifully when exposed to sunlight☆ Each item is carefully made, but as it is handmade, there may be some slight imperfections. We ask for your understanding before purchasing. Hooks and other parts use Surgical stainless steel, which is less likely to cause allergies. It will remain in a beautiful condition without blackening☆ Earrings can be changed for an additional 100 yen. Surgical stainless steel☆