Free shipping nationwide! No permission needed. Instant purchase OK! I will not lower the price, so please refrain from price negotiations. This is a must-have item for people who easily lose their "earring backs." These are 18k gold "earring backs" that are double-lock style, with a silicone coating over the metal back to prevent them from falling off, and are less likely to cause metal allergies. They are essential items for the sea and pool, where they are completely lost if they fall off. They can also be used for cartilage earring backs. Recommended for when you lose them, and as a spare earring back. ◇Size◇ 5mm diameter ◇Quantity◇ 12 pieces ◇Color◇ k18 gold Won't fall off, won't lose, hard to fall off, won't come off, for women, for men, unisex, Christmas, graduation ceremony, entrance ceremony, 15 2.