18 mm long by 13 mm wide and 7 mm thick, these fancy jasper beads are a good size for either a bracelet or a necklace. The brown and white swirls range in tone from dark to light. The strands are interesting but the variations are harmonious within the strand. These beads do have some faceting which enhances their shine. They are highly polished. Each strand is 16 inches long and contains approximately 22 beads.