Bugle Beads Size 3 Colorful Glass Bugle Bead Mix Glass bugle beads in a colorful mix. Size 3 bugle beads measure 7/16 inch or 10mm String them, weave them collage with them. Use with nymo size B or D and size 10 English beading needles. Pack size: 40 grams, approximately 1,000 beads.