Czech Seed Beads Color: Silver Lined Dark Amethyst. Czech Color #27080 Silver Lined - Transparent glass bead that has a silver core. These beads will be very sparkly. These hold up well in average use, though people with high PH level (acidic) skin may find that they turn the silver-core dark. Size: 6/0. They measure about 3.5mm wide & 4mm in diameter. Hole size is about 1.4mm. The beads are packaged in temporarily strung, 6 strand hanks. Approximately 950 beads per hank. Each hank weighs approximately 70 grams (2.5 ounces). The photographs are much larger than the actual items. Please refer to the measurements above for size accuracy. Czech Seed Beads 6/0 Silver Lined Dk Amethyst 31644 , Purple Glass Bead, Size Beads, 4mm Preciosia, Jablonex