Lightweight number lock Duffel for the bag when you put it in the carriage.
This will ensure that the zippers stay closed and at least leave a mark.
Very functional and secure base bag lock. Proven not freeze hands
Unfortunately, the length of the cable is not specified by the manufacturer on the pages. However, they mention that several bags can be attached together with this. The thickness is about 3mm.
Dimensions, length and thickness of the wire at the thickest point?