This string of 10 large hole ribbed donuts is roughly 4 inches long with the ceramic spacers. The beads measure about 14mm X 8mm and the hole measures almost 5mm. These should fit nicely over larger leather cord or almost any European snake chain. The beads are kiln annealed for strength and durability and are wound on 4.5mm mandrels. The bead color is Copper Turquoise.