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They Are Sturdy, Metal, And Do Not Fall Off Easy：These pin backs locking clasps are made of quality nickel-plated copper, Nice and sturdy locks,

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Safety material: These pin back lock buckles are made of high-quality nickel plated copper, durable and strong. They can lock the needle firmly to

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Deluxe Locking Enamel Pin Keepers — Pack of 5 — Locking Pin Backs

AYLIFU 20pcs 6 x 5 mm Locks Pin Backs Locking Clasp Copper Pin Keepers Pin Locks Pin Backs Locking Clasp with 2PCS Wrenches（Silver） - Yahoo Shopping

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Deluxe Locking Pin Backs 3

Made of top-class metal.Sturdy construction and smooth surface. Spring Loaded fastener for easier on-off action without need a tool. Keep your pins

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Pin Keepers Pin Locks Locking Clasp Pin Backs with Wrench (48 Pieces)