No piercing needed, easy to use, just open the loop and clip it on ears. You can wear many fashion earrings Earring findings designed with screw back and loop, easy to adjust and add charms on Specifications:Material:Metal Size (approx):15mm long14mm WideColor:Silver Package includes:10 x Earring Clip Note: Keep your jewelry looking its best year after year1.Apply beauty products prior to wearing your jewelry2.Remove jewelry prior to swimming or bathing3.Use warm water and a mild soap, rinse jewelry and pat dry, do not use jewelry 4.To avoid black markings on your skin or jewelry, clear jewelry regularly 5.Put jewelry separately in a box