Netsukes are small ivory, wood, metal, or porcelain pieces used as toggles on the end of the cord that held a Japanese money pouch or inro. The earliest date from the sixteenth century. Many are miniature, carved works of art. This category also includes the ojime, the slide or string fastener that was used on the inro cord. Natsukes are often small carvings of wood or ivory. There are legal restrictions on the sale of ivory. Check the laws in your state.