Sterling Silver 10.0mm by 16.0mm Plain Interchangeable Leverback Ear Ring With Open Loop. Sold as -

TOAOB 17MM French Leverback Earrings Mixed Color Making Pack of 200pcs

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PandaHall Elite 120 Pcs Brass Lever Back Earring French Hook Ear Wire with Open Loop 15X10mm for

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3-Pairs Sterling Silver Interchangeable Leverback Earring Findings