Climber 22 inch Carry On Duffle-Pine

Just got mine today - I was pleasantly surprised at how well-made the carry on is!

Question for anyone else more familiar… these have “lockable zipper pulls”, but I cannot figure out how they “lock”. All 4 pulls (one on each of the two front pockets, two on the big zipper on top) have a bungee-like pull with a plastic cap and a sleeve. The sleeve moves top-to-bottom, exposing about 3/4" of the bungee. Presumably the pulls lock to each other, but I can’t figure out how, there are no instructions, and the Victorinox website is worthless in this regard.

Anyone?

I don’t know, but I will ask the vendor. It might take a bit longer than usual to get an answer, but I’ll do what I can!