Czech Glass DiamonDuo, 2-Hole Diamond Shaped Beads 5x8mm, 10 Grams, Jet Black Czech Diamond Duo DiamonDuo Beads The two holes are 4mm apart (center to center), and will accommodate wire or thread up to 20 gauge (0.812mm) thick Measurements: 8mm long and 5mm wide with two parallel holes holes spaced 4mm apart. The beads are 2.5mm high and 3.5mm at the top of the diamond shape Quantity: 10 gram tube (approximately 65 - 68 beads, depending on the bead finish) Color: Jet Black