 The Ban Liang cash coins of the Warring States period typically have a diameter between 32 and 34 millimeters and weight of 8 grams.The Ban Liang cash coins produced by the State of Qin have rectangular centre holes, as opposed to later cash coins which have square holes and many earlier Huanqian which had round holes.Ban Liang cash coins during this era were cast in two-piece moulds () and these moulds could produce 6 cash coins at a time.