【496】Luminous Firefly Glass - Blue Firefly glass size: 10mm Round pin material: 14kgf Earrings: 14kgf French hooks Material color: Gold 【Silver】is also available. Luminous type that stores light and glows faintly in the dark. The earrings are French hooks made of surgical stainless steel material that are difficult to fall off. What is surgical stainless steel? ・Material with extremely low allergenicity among stainless steels ・Less discoloration ・Rust-resistant ・Hard to scratch Regarding hardware changes: Resin U-hooks: Free Surgical stainless steel post with can: +0 yen Surgical stainless steel hook: +0 yen Resin post with can: +100 yen Gold round ball with can: +100 yen Resin non-hole earrings: +100 yen Screw-type earrings: +150 yen Butterfly spring earrings: +100 yen Rubber cover for earrings: +30 yen Downward-facing prevention catch: +30 yen