The wheel was far from ordinary, nearly reaching the height of an adult's chest at one and a half meters tall and twice as thick as a normal wheel, with four to a vehicle.
Most uniquely, the large carts, whether the carriage body or the wheels, seemed to be all of a piece—there were neither iron nails nor riveting marks to be seen, as if they had grown straight from the trees.
This was no mere work of a carpenter but the bend-wood and the Wood Shaping Technique of the Druids.
Such heavy-duty cargo trucks, if pulled by ordinary warhorses, would struggle even when empty, let alone if you tried to use just one horse for the job—two would be somewhat strained.
One could tell by their yoke height; these were not meant for warhorses at all. The Treants were perfectly suited to drag them, effortlessly as if drinking cool water—not one cart, but three linked together. Despite being empty, they still displayed their fearsome strength.