How to use locking pin keeper/pin saver

The material of locking pin keeper is brass. Usually there are two size 5*5mm and 7*5mm. One sets locking pin keeper including 12 pcs 5*5mm(10 pcs 7*5mm) locking pin keeper and a wrench. The surface treatment is barrel plating. After being plated, the surface of locking pin keeper is smooth and shiny. It is also rustproof.

When we use the locking pin keeper, first we use wrench to screw out the screw. Then, put the pin or nail of badge through the holes（the hole of up face and down face） of locking pin keeper. Last, put into the screw from side face hole. 

It is very easy and simple to snap on and off. Great for pins, souvenirs, badge, etc. So it can keep your pins safe.