They're from Peru. They're ceramic. They're hand painted. The hole runs side-to-side through neck, except grasshoppers don't have necks. Not quite 1.5 inches long. PCB's - Peruvian Ceramic Beads. Some of the PCB holes will take a 2mm cord, some just close to a 2mm cord. Sold in units of 5 so to buy 10 choose 2 units, to buy 100 choose 20 units