【Materials】Surgical stainless steel (medical-grade stainless steel) & Silicone 【Colors】Gold & Silver 【Size】Earring post diameter: Compatible with 0.62mm to 0.92mm (In rare cases, it may not stay in place if the notch on the post is shallow) ☆ The gold ones have gold plating. If you have sensitive skin or metal allergies, please refrain from purchasing. Thank you for viewing! Stamped with "Ochinkun 2" ① To put them on, simply insert them. ② To remove them, pinch "Ochinkun 2" with the pad of your finger and press. Be careful not to use your fingernails to pinch, as this may tear the silicone. ③ Then, just pull them out. ※ This is not a 100% non-falling earring back. ※ Not everyone will be free from allergic reactions. ※ The diamond earrings in the photo are not included. ※ This product is not subject to price reduction. Please understand. ※ If you want multiple items, please ask in the comments beforehand. (Discount available) ※ Replacement silicone available (separate charge) ※ Will be shipped via "Yu-packet Post Mini". If you prefer, you can also change to "Nekopos". Please let me know in the comments. (Both are anonymous shipping) ※ Returns and exchanges are not accepted after purchase. ※ Due to differences in monitor environments, the actual color of the product may appear different from the photos seen on smartphones and computers. Please understand. ※ I have put a lot of effort into writing this text. Please refrain from copying and pasting. ^_^; #EarringBacks #NonFallingEarringBacks #NonFallingEarringBack #OchinkunEarringBacks #LockingEarringBacks