TOAOB 100pcs Earring Stud Settings Earnuts 3mm Cupped Allergy Free Clear Ear Pins Plastic Earring pins and backs set: 50 pairs of earring pins and backs, includes 50 pieces of earring pins and 50 pieces of earnuts Standard size: straight stud with dome earnuts,12 mm pin length, round plate - 5 mm in diameter Great for sensitive ears! Safe for children's jewelry. Blends with skin, no need to match metal colors of other jewelry worn Anti-allergy material: earring pins are made of acrylic and earnut are made of silicone rubber, which makes it allergy-free, lightweight and durable Multiple application: these clear earring designs for kids, adults and even craft makings, they can also use for new jewelry or to replace other earring posts