Czech glass seed beads are some of the highest quality and most uniformly sized beads in use today. Great for bead weaving techniques that require multiple passes of thread through each bead. Color: Supra Metallic Mix--with light gold, copper, and metallic silver. Supra finish is a baked-on metallic finish with a slightly matte appearance. It is more durable than sprayed on metallic coating. Measurements: Size 8/0, which is approximately 3mm in diameter. 13-15 beads per inch. (5-6 per centimeter). Quantity: 1 ounce (approximately 1370 beads). We recommend using English beading needles sizes 11 or smaller.