Potomax WibeDuo Bead - Gunmetal. Add a special uniqueness to your jewelry with the use of these metal WibeDuo beads. They are cast in Zamack metal then plated in gunmetal to produce durable beads that will stand the test of time. These alternative metal beads can be used in place of many different Czech glass multi-hole beads. Let your creative juices flow with these star shaped beads that are flat on one side and rounded on the other. The Potomax WibeDuo Metal Bead has 2 holes that run on the diagonal, measure 8mm, and come in packs of 10.