Extend your set in easy steps by adding track packs and trakmat accessory packs such as the hornby track extension pack b all the way to the full layout pictured on your trakmat scenic underlay sheetadd b to the starter oval a to make this layouthornby helps you to create highly detailed scale models with ease and pleasure combine this with the other hornby model components to build models that you can be proud of and youll be able to build them to be as complex as you likeincludes tw