These are 22AWG wire, so intended for dropper feeds across the layout, at regular intervals, using a bus wire. They are not suited for high current connections. They are suitable for both DC and DCC layouts.
Railtec 4MM-8960 Graffitti: Tags Pack No 10 Decals OO Gauge
24 Pack OO Gauge Pre-Wired / Pre-Soldered Rail Joiners / Fishplates SL-10 DCC DC
Hornby R767 Sheep x 10 sealed pack - OO Gauge
Model Railway Scenery Fruit Apple Saplings 10 in a Pack OO Gauge (00379)
Fencing Railings OO HO New 10 Pack Grey Gauge 1:76 Scale Models Train Railway