Preciosa Crystal Bicone Color: Amethyst AB2x Available Sizes: 3mm, 4mm, 6mm Sold in Packages of: 3mm: 48 or 144 Pieces. 4mm: 48 or 144 Pieces. 6mm: 12 or 36 Pieces. Hole Dimensions: 3mm: 0.8mm (.032 inch) fits up to 20 gauge wire or thread. 4mm: 0.8mm (.032 inch) fits up to 20 gauge wire or thread. 6mm: 1mm (.040 inch) fits up to 18 gauge wire or thread. Product Material: Crystal Country of Origin: Czech Republic Preciosa Bicones Amethyst Ab2x 3mm, 4mm, 6mm Crystal