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These butterfly earnuts, earring backs or stops measure 5x3.8mm and are made of black iron. Black earring backs that can easily be tightened if too loose.

*Hole size is approximately 1mm and may be loose on smaller posts. If you believe your earstud is of the smaller type, I would recommend an acrylic or rubber earnut/security back which can be found in the link below.

5x3.8mm - 50 pcs. (25 pair) per package #F4016EN-B50

Security backs, clutches and earnuts, are available in a choice of styles and quantities:

A large selection of earring components available from this shop:

FLAT RATE & FREE SHIPPING information here:

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50 Black Earring Backs Butterfly Earnut 6x4mm - 50 pc - F4016EN-B50

$1.95 USD
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  • Material: metal
  • Feedback: 46947 reviews
  • Ships worldwide from United States