Czech Glass Bugle Beads ~ Size #1 (2mm) ~ Multi Mix Tube Czech Glass Bugle Beads. Size 1 (1/2" 2mm) long. A great assortment of colors and finishes. Tubes measure 3" x 3/8". Perfect for stringing into necklaces and bracelets or for accent beads in seed bead projects. Approximate quantity per tube: 450 beads