Description:Made of stainless steel, safe and comfortable to wear, nickle free, lead free,it will not fade, deformation or rust over time. Features the earrings posts with flat pad allows you to DIY your earring findingrhinestone and crystals flatback via hot liquid glue, tweezer help you easily DIY craft.Earrings backs fit to most of the earrings posts, good replacement for your lost earring back and earring post.Suitable for for all face types and occasions,wear your unique stud earrings. You can use it for your party,daily use, activities and gifts.Handmade, DIY making earrings, jewelry accessory, jewelry making materials, jewelry base, earring making supplies.Specification:Material: Stainless SteelEarring posts pin length:12 mm/0.47'' inch.Package Includes:20/Set Earring Pin Studs and BacksNote:Please heat and rub the pins with alcohol before use.