BLACK EARRING POSTS: The color of the flat pad earring studs is black, which is unique and eye catching compared to other colors, making you more unique and giving you a different feeling36 PCS ROUND EARRING STUDS: A plastic box contains 36 pcs black earring posts and 36 pcs ear nuts, so you don't have to buy extra. A sufficient number of earrings can meet your daily needs, and the box is convenient for storing earring posts, making it very suitable for handicraft enthusiastsSIZE AND CONTENT: Black earring posts x 12 pcs: about 10x1 mm(0.39x0.04 in), hole: 1.2 mm, pin: 0.8 mm. Black earring posts x 12 pcs: about 8x1 mm(0.31x0.04 in), hole: 1.2 mm, pin: 0.8 mm. Black earring posts x 12 pcs: about 12x1 mm(0.47x0.04 in), hole: 1.4 mm, pin: 0.8 mm. Come with plastic box x 1 pcGREAT QUALITY MATERIAL: The flat pad earring studs and ear nuts are made of high quality 304 stainless steel as a whole, which is not easily discolored or broken, comfortable to wear and suitable for long time useSUITABLE FOR VARIOUS OCCASIONS: You can add different beads and accessories, and design different black earring posts according to different occasions. You can wear it in most occasions, such as travel, parties, birthdays, and so on