Magic Copper "O" -3.8mm Czech Glass O Beads, Mini flattened ring / donut shape, also called Czech Zeros Beads Measure 3.8mm x 1mm, Hole size: 1.3mm Sold in a 10 gram tube containing approximately 330 Beads (20% more beads than others 8.1 gram tubes) Made of Czech Pressed Glass Made in the Czech Republic