Hornby R8225 Track Pack Extension EExtend your set in easy steps by adding Track Packs and TrakMat Accessory Packs all the way to the full layout pictured on your TrakMat scenic underlay sheet. Add Extension Pack E to the Starter Oval plus Extension Packs A, B, C and D to make this layout. Item Length Without Packaging (cm) 35 Item Height Without Packaging (cm) 0. 4 Item Width Without Packaging (cm) 2. 9 Item Weight Without Packaging (kg) 0. 15 Item Scale 1: 76 Scale 00 Gauge License No