Flashmer Multifluo Crystal Beads (bulk) are made of hard, translucent plastic. The 6-mm diameter beads have a 1.4-mm hole and are available in assorted colors, yellow, or red. The 8 mm diameter beads have a 1.7 mm hole and are available in assorted colors or Orange. These beads can be used with surfcasting lines, drop shot rigs, or Texas rigs. Each bag contains 1,000 beads of the selected version.