Bugle Beads Size 3 Czech Metallic (a full one hank pack) over 30 colors available individually!, Shiny Gray Gunmetal High quality Czech Size 3 glass bugle beads. Size 3 bugles are 1/2 inch or 7mm long. Bugle beads are small tubes of glass. They can be used as a stringing bead or for woven beadwork. The small size and beautiful color range makes these bugles useful for a wide variety of beadwork. Use with nymo thread sizes D, B and size 10 or 12 English beading needles. Approximate pack specifications: 1.5 ounces: hank or hank equivalent of 12x20" strands, 850 beads.