This is a 3mm:1ft model of a GWR-design O35 open medfit wagon and a DX open container. Wheels for 12mm track to an intermediate (not finescale) standard are included in this pack. Separate the axles from the cage, keeping the spares, and the container stretchers from each other - fit a curved 'bow' made of wire to those, between the angled holes near the end, and an upright 'post' in the hole under the middle. If necessary, deepen the groove below the pinpoint sockets under the wagon so that the axles will go in with only minimal outward pressure and fraction of a millimeter movement on the axleguard to let the second poinpoint drop in. It is possible to glue this plastic back together, but it is better not to break it.