Halling type unit, all wheels powered. Fits all Blackpool Streamline (centre entrance) Trams and their rebuilt versions. Fits the Corgi/Atlas diecast, Hadfields kits and 3d bodies from us which do not have their own chassis. Optional seating unit - this is NOT supplied as standard. 3d printed frame, Halling 8mm wheel diameter, 21mm bogies, supplied wired for 2 rail. Easily converted to DCC. Please allow 28 days for delivery as all items are made to order.