3.5 inch gauge wheelsets, mounted on 4.8mm steel axles with vacuum cast black resin wheels, the scale 2ft 8in x 8 spoke Wagon wheels are 52mm diameter and sold as two wheelsets of four wheels and two axles assembled and set to the correct back to back, they are based on the old Hornby product.
8 spoke 58mm/3ft wagon wheelsets are also available.