3 X 3mm approximately. Made in Japan. These are really old beautiful butterscotch vintage bugle beads. There are 18 strands per hank. These are a real steal at this price! These bugle beads were made with a special technique. Tiny bubbles of air were infused into the glass beads for a satin finish. Very pretty and rich. These bugle beads are all temporarily strung in hanks for your beading and weaving convenience. Simply tip your needle through the string and take off what you need. This is one of the nice features of beads sold in hanks.