Never lose a pin again! Upgrade all of your Pin Backs to these Locking Tie Tacks.
These are the exact same Tie Tack Backs that I use for all of my pins. They are brass plated. It is an incredibly secure option, and perfect if you want to wear your pin on your jacket or a bag. They essentially "lock" into place and a mechanism has to be moved in order to release it from the pin post. It is a high-end option that is great if you are concerned about losing your pin as you wear it.
TIPS ON REMOVING THE TIE TACK BACK: Lift the tie tack by grasping the flat, thin “cap” at the very top to unlock the Tie Tack. There is a spring in the tie tack, and this action moves the spring. This will work 99% of the time. It does occasionally stick. If it is still difficult to remove, you should reset before you try to lift the flat part away again. You can "reset" it by compressing the Tie Tack back onto the pin until it is as compact as possible. And when you're lifting by the flat brim, try to twist your hand as well, like you're removing a cork from a bottle.
Please note, since they are plated in brass, discoloration and small scratches are normal. And they will always have an overall shiny, gold finish.
Approximate Dimensions for the Tie Tack: 1cm wide and 7cm tall