10x Siam Red and Crystal Crackle Glass Bicone Beads 8mm. I love these beads - they combine a good punch of colour with an icy sparkle. Warm red and crystal clear glass combined and the whole cracked like ice. The overall effect is similar to a foil lined glass bead. 8mm hole to hole length and 8mm in diameter - however sizings do vary slightly between beads and this measurements are averages. The bicones have soft facets.