Build your railway network in new directions using hornby extension pack c r8223 the parts in pack c include a right hand point switch a couple of straights and a few curved track pieces that make up a full u curve use it to add eight new track sections to a custom layout or join it to the starter oval extension pack a and extension pack b to combine it with your existing set and make the pictured layout along with packs a and b extension pack c completes a full loop within the starter o