Qing Dynasty bowl for serving the ingredients used in betel-chewing (i.e. areca nut, betel leaves, slaked lime, the optional ingredients tobacco, cloves, and gambir, and the areca nut cutter called kacip)
These stones are believed to be able to cure diseases and to neutralise poison. In most applications the stones are immersed in water, and the water is then applied to the skin or consumed