Material: 316L surgical stainless steel. Hypoallergenic. Comfy for your sensitive ears</br>5 pairs/set. Size varies from 4-8mm</br>All the earrings exceed F.D.A / E.C requirements</br>Come with Butterfly Earrings backs. Grooved friction post for secure fastening</br>Pack with blue gift box. Free 2-day fast shipment for prime members</br></br>Product Description</br></br><b> Product Information: </b> <b>Uhibros 316L Surgical Stainless Steel Round Ball Studs Earrings 5 Pair Set Assorted Sizes</b> <br> <b> Back Type: </b> Friction<br> <b> Metal Color: </b> Grey <br> <b> Metal Type: </b> 316L Surgical Stainless Steel<br> <b> Stud Size: </b> 4mm, 5mm, 6mm, 7mm, 8mm<br></br><br/>http://www.amazon.com/gp/product/B01CTQYGQG