HORNBY TRAKMAT OO Description Size 1800mm x 1200mm As supplied with some Hornby train sets ideal as a base for your layout at any stage in its development. Extend your set in easy steps by adding Track Packs and TrakMat Accessory Packs all the way to the full layout pictured on the TrakMat. Item supplied is TrakMat only - other contents are for illustrative purposes only.