Hypoallergenic Sterling Silver Crystal Rainbow Aurora Borealis Stud Earrings for Kids (Nickel Free) Penny & Piper children's earrings .925 Sterling Silver girls' earrings, safe for sensitive ears Crystal earrings for girls Size: 4mm earrings (crystal diameter) Nickel free earrings, hypoallergenic You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!