30PCS Locking Pin Backs Locking Pin Keepers Clasp Metal Pin Locks

[Easy to Use] No tools required, spring loaded latch design for easier locking and removal, just push the base to lock and secure them, pull to release the lock and remove it. change your pins whenever you want.

DECYOOL 30 Pieces Metal Pin Backs Locking Pin Keepers Locking Clasp

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Pin locking back-- metal pin backs locking pin keepers locking clasp required locking pin backs keepers crafts locking backs for jewelry making

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DUFEIMOY 30Pcs Metal Locking Pin Backs, Pin Locks