I had ordered a similar key from another company. When it arrived, it didnt even fit the slot on a standard pair of cuffs. This one is well made and works great. I am a detective so I keep it in my pocket at all times.
If you are looking for a cuff key, look no further. this key is comfortable and easy to put in a shirt pocket, pen slot on a polo, or in your tac pants. Ill always recommend Zac Tool to people needing gear