This is the Connecting Cables from the Just Plug Series by Woodland Scenics.
Quickest and easiest way to add lights to any project
Easy-to-install cable plugs make connections a snap
Connect Expansion Hubs to Light Hubs, Expansion Hubs to Expansion Hubs and/or connect any Hub to train power pack or DCC system
2 - 48" Connecting Cables/pkg
Compatible with DCC and works for any scale
2 Connecting Cables
COMMENTS: Due to small parts that could cause a choking hazard please keep away from children 3 years of age and younger.