Material: 316L surgical stainless steel</br>Perfect in size 8mm?? appropriate for any occasions</br>All earrings exceed all F.D.A / E.C requirements</br>Coming with Butterfly Earrings backs?? are grooved friction post for secure fastening</br>Packed with velvet box?? free 2-days fast shipment for prime members</br></br>Product Description</br></br><b> Product Information: </b> <br> <b> Back Type: </b> Friction <br> <b> Metal Color: </b> 24K Rose Gold <br> <b> Metal Type: </b> 316L Surgical Stainless Steel <br> <b> Stud Size: </b> 7mm <br></br><br/>http://www.amazon.com/gp/product/B01CTQYJ2C