Package included: 50 count pin backs.
Dimension: Top diameter is 10mm and the bottom is 5mm, height is 7mm.
Usage: Great for use in display books, on lanyards, bags, vests, badge, hats, pins,name tags.
Easy to Use: It can match your clothes easily, enhance your art taste. Easy on-off action, more convenient to remove and lock. Made of durable nickel-plated copper material, more useful.
It can keep your pins safe.

Safe alternative pins keepers: pin backs provide your replacement to the torn screw or wrench locking machismo; keep your objects in place during important moments.

Pin backs locking clasps are made of nickel-plated copper durable, smooth surface, sturdy and lock your pins firmly to keep them secure.

No tools required: easy on-off action, spring loaded fastener simply need you to use one hand to handle it.

Warm Note: These pin backs are not suitable for a lightly thick jackets.