[ Safe Pins Keepers ] There are 30 pieces of this product, 10 pieces each in gold, silver and rose gold. They are compatible with most standard pin sizes and styles to meet all your pin needs.
[ Reasonable Pin Size ] Supplied with ample locking pin backs with a locking pin back hole diameter of 1.25mm/0.04 inch and a height of 7mm/0.27 inch.
[ Quality Material ] These pin back locks are made of nickel-plated copper, durable, smooth, sturdy, and they lock your pins securely, keeping them safe.
[ 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, replace the pins whenever you want.
[ Widely Used ] Metal pin backings are suitable for DIY projects such as large head pins, lapel pins, name tags, display books, wall hangings, luggage, vests, hats, denim buckles, badges, shoulder bags, enamel pins and more.