JUMBO SIZE & QUANTITY: Size approximately L3.66 x W3.5 inches, or L9.3x W8.9 mm. Pack includes 4pcs or 2 pairs sterling silver jumbo earring backs. | AUTHENTIC 925 STERLING SILVER: The locking earring backs are made of 925 authentic aterling silver which are strong, hypoallergenic and comfortable to sensitive skin. | DIY FAVORITE: These 925 jumbo earring backs are the best choice of DIY earring lovers, it is excellent for earring back replacement, earring making posts, earring backs, earring making supplies, earring repairing, earring making and earring replacement backs. | PERFECT FOR HEAVY EARRINGS: These sterling silver jumbo earring backs are perfect for holding up heavy large earrings. Bonus these 925 jumbo earring backs are pretty from the back if you wear your hair up. | NEAT STORAGE BOX: Each pack includes 4pcs/ 2 pair sterling silver jumbo earring backs. All are packed in a clear plastic box with 1pc complimentary silver polishing cloth. You can store your earring backs neatly.