This is a 2mm:1ft model of a Great Western Railways / British Railways 42t unfitted bogie open strip coil wagon. The model comes with a pair of plateback bogies and accepts N-gauge or 2mm FS wheels on axles 14.8mm over pinpoints. The bogies can be held on the pivots on the underside of the wagon using a short length of wire rod, through the pivot, and just longer than the hole in the top of the bogie. The bogies have a fixed N-gauge style coupler, and a NEM pocket the other, and you can saw off either, or both if you want to fix something different altogether. You could also use N-gauge Society plateback bogies.