● Package include: 12pcs/6 pairs 925 Sterling Silver Earring Backs(925 Stamped) ● Size: 5mm*6mm, This butterfly earring back size fits for most standard earrings posts. Easy to put on and off ● Great Earring Findings, They do not make as much contact with ear like bigger backings and not cause any irritation ● Don’t worry about losing the back of your earring ever again with this set of butterfly earrings backs. This set is economical for replacing the missing backing or have a few as back up ● Butterfly earring backs is 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