Locking Pin Keepers Backs Metal Pin Locks Replacement Pin Backs Clasps for Jewelry Brooches Badge Name Tags Crafts DIY ，Silver，30pcs

• 【Locking pin backs】 the hole diameter for the pin is 1mm (approx.), The upper diameter of the pin back is 10mm (approx.), The lower diameter is 5mm (approx.), and height is 5mm (approx.)
• 【Durable and strong】 the pin backs are made of metal with a Silver colour coating which makes it strong, durable and long-lasting to use.These Safe Pins Keepers are more convenient and safer to use than butterfly pins, and are less likely to prick your hands.
• 【Easy to use】 the spring-loaded fastener for easier on and off, Simply need you to push to lock them, then push on the base to secure them and pull to loosen the lock and remove
• 【Cost savings】It can replace broken screws or locking devices on your brooches, badges, etc., so you can use them again instead of having to choose to discard them.
• 【Multiple uses】 these pin backs are perfect for DIY crafts, badges, flaps, jewellery making, display books, cords, bags, jackets, Lanyards, bags, vests, hats, etc.

Usage and features： Locking pin backs are regularly awarded in the Carnival Club – a reliable closure is worth gold. These metal pin keepers are significantly better than the standard locks: 1. They are not so sharp, which is a plus especially for children or sensitive clothing. 2. The grip is significantly stronger – once attached, the pin remains in place. 3.Strong carrying capacity, it can withstand a weight of about 2.5kg, so that the pins can be fixed firmly. 4.If you want to look for spare parts for your pins, our products can solve this problem for you, although it feels a little thick, but you can see if it meets your needs, our pins are worth having for you. They grip the badge pins well, no more lost backs. Easy to use. Good quality. 5.Perfect for: hanging needs to hang up perfectly like the house key, posters, wedding photos, framed maps, framed postcards, etc. Specifications: Quantity: 30 pieces-Each weight is about 3 grams. Color: Silver Size: Upper diameter: 10mm Hole Diameter: 1mm Base Diameter: 5 mm Height: 5mm Usage: Insert the pin directly into the hole, if you want to release the pin, pull the base back. As shown in Figure 3. Attention: Due to its small size, please keep away from children under 3 years old and avoid swallowing.