Jeweltone Mix -Size 6&deg; Japanese Seed Beads Size: 6/0 Dimensions: 3.9mm wide x 2.85mm in length with a 1.2mm hole. Measurement is approximate as different finishes and coatings can vary the size of the bead slightly. Quantity: Each 20 gram tubes contains approximately 300-350 beads. Material: Glass Made by Miyuki in Japan