Thank you for viewing! (^-^) These are high-quality earring parts with K16GP coating. They are flat-backed and an improved version with enhanced spring durability‼︎ Size/Capacity 【Size】 Height (length) 13mm x Width (depth) 9mm x Ball diameter 4mm (back width 6mm) 【1 set】4 pieces, 2 pairs 【Material】 Brass + K16GP coating ━ 16K Gold Coating (Plating) ━ ※ By using gold, it is more resistant to discoloration than conventional gold. ※ Coating with a metal that has a higher gold content further enhances the sparkle and makes it last longer. ※ However, as this is a plated product, changes due to oxidation, weathering, and deterioration may occur, so please understand. ◆ Made in Korea (not made in China.) ☆ About bulk purchase discounts ☆ We will deduct 50 yen from the purchase of 2 items, and 50 yen for each additional item purchased. Please contact us in the comment section before purchasing. We will create a dedicated page. 《Example》 2 items = 50 yen off 3 items = 100 yen off 4 items = 150 yen off ☆ About shipping ☆ ※ We ship by regular (outside) mail. (Simple packaging, with bubble wrap) Please understand that there is no compensation for loss or damage during shipping. ※ We are closed for shipping on weekends and holidays. #Handmade materials #Parts #Earrings #Earrings #K16GP #Genuine rhodium #Gold