Wire with 1-Prong Connectors, 12V / 4.5V 28L

Reference

765c28

Wire with 1-Prong Connectors, 12V / 4.5V 28L (part 765c28) is a LEGO element. CollectORbuild's catalog records it in 6 sets, including High-Speed City Express Passenger Train and Inter-City Passenger Train.