It's not quite the same as those pictured - but one of these http://www.lfgss.com/thread584.html (maybe an older model as I bought it ~7 years ago).
To be fair - I can't remember precisely how I locked it this particular time; it's a habit after a few decades of riding. Having said, that I usually lock it around the seat or top tube (if no clearance). Food for thought and more attention by me I guess!
Then again, maybe they wanted me to continue using the same lock if it can be easily removed and put back!
It's not quite the same as those pictured - but one of these http://www.lfgss.com/thread584.html (maybe an older model as I bought it ~7 years ago).
To be fair - I can't remember precisely how I locked it this particular time; it's a habit after a few decades of riding. Having said, that I usually lock it around the seat or top tube (if no clearance). Food for thought and more attention by me I guess!
Then again, maybe they wanted me to continue using the same lock if it can be easily removed and put back!