The Hornady Rapid Safe Key bracelet is used to allow you to quickly open up your Hornady Rapid safe in the blink of an eye. The RFID (Radio Frequency Identification) Key is scanned over the reader and your Rapid safe springs open allow you access to your handgun. This is a must have product for anyone who own the Hornady Rapid safe. This bracelet is size medium and comes in a matte black finish.