Hello☆ Thank you for visiting my shop out of many others. Purple gradient beads ☆ 10mm Star connector ☆ 6mm beads Copper alloy stone ☆ 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. They are also surgical stainless steel☆