This is a Tot Lok magnetic key, for use with Tot Lok child resistant cupboard latches.
What it is not is something you want to absentmindedly put in your pocket when there is already an 80GB iPod Classic in it.
An 80GB iPod Classic is a portable multiple media device featuring a metal exterior shell and a tiny hard drive.
An 80GB iPod Classic which has spent a day with a Tot Lok magnetic key stuck to its metal exterior shell is known by a different name:
Paperweight.
