3 Sizes Available: The size of each stud earring is about 4/6/8mm in diameter, 0.6mm pin, Fit for 3.5/5/7mm Rhinestone ,50pcs/Size,Pack of 150pcs;you can match to make suitable earrings. DIY Earring Findings: the earrings are semi-finished, with 4 claws, and you can add beads, small stones, diamonds, tumbled rock , tumbled rocks or cabochons to DIY your own personalized stud earrings. Quality Material: stud earrings are made of 316 Surgical stainless steel. not easy to break, deform or bendsmall earrings are decorated with smooth surface, showing metallic luster, low sensitivity and no harm to the ear. Purpose: The claw-shaped design makes it easier to fix your inlaid jewels and diamonds, allowing you to easily add and inlay diamonds and jewels to make simple and elegant earrings,with Ear Nuts. Perfect Gift:You can use these prong earring blanks with beads and rhinestones to make a gift for your family or friends on Mother's Day, Christmas, New Year, Valentine's Day, birthday or anniversary.