PACKAGE & SIZE: The package contains a total of 100 Pin Backs, providing enough quantity to meet your diversified use needs, the Pin Backs are 0.4 inches in diameter and 0.25 inches in height, which can be matched with most of the pins to ensure that each beautifully designed pin can be accurately fixed, bringing you a wonderful use experience. QUALITY MATERIALS: The Metal locking pin backs are made of high-quality nickel-plated copper, the metal on the surface of the locking pin backs is shiny, not easy to corrode, discoloration, and smooth contact. The unique design is sturdy and durable and can lock your pins firmly, so they won't fall off or lose easily. VERSATILE APPLICATION: Metal pin backs can be suitable for pins, lapel pins, badges, hanging decorations, denim buttons, enamel pins, display books, clothes, etc. You can DIY as you like and use your imagination, all these metal Locking Pin Backs can meet your daily life. EASY USE: Our pin backs locking is very convenient and simple to use, no other tools are needed, first just push the item that needs to be secured into the pin back to secure it, then pull the release lock to remove the item, reusable very convenient. PROFESSIONAL SERVICES: We are confident in offering a 100% satisfaction guarantee as we are sure you will be satisfied with our Metal Locking Pin Backs. Please feel free to contact us if you have any questions about this product and we will resolve them for you within 24 hours!

PACKAGE: 100PCS

MATERIALS: The Metal locking pin backs are made of high quality nickel plated copper.

CAPABILITY: Mainly used for fixing or decorating.

l  These  Pin Backs  are not like traditional pin backs, they have a unique snap design that prevents your pins from falling out and getting lost.

l  You can DIY and be as creative as you want!

l  The pin back lock is straightforward to use, no other tools are required, just push the item to be secured into the back of the pin to secure it, then pull the release lock to remove the item.