These brass bat stud earrings are handcrafted in the USA (Jersey City, New Jersey!) The bats themselves are solid brass stampings made from an antique mold! Super-cute & easy to wear; so comfortable, you can easily keep them on all day! These unisex bat earrings make the perfect gift for the bat lover in your life. Great for goths or anyone who can appreciate the true magic & beauty of bats! 💕🦇💕 The posts on these bat earrings come with gold-filled ear nuts that click when locked so they don't slip out! The ear posts themselves are also gold-filled, so these earrings are safer for people with nickel or other base metal allergies/sensitivities.