Magnetic Beads - 5mm Rondel - Metallic Blue Iris are plated using a process called IPG, where precious metals are used in a vacuum to bond to the magnetic hematite surface at the atom level, creating an incredibly tough, long wearing finish! Great for magnetic therapy jewelry making. Approximately 133 beads per strand. Beautiful Metallic finish with a hole diameter of approximately 1.2 millimeters. These are for adults only, not for children's use (Swallowing hazard).
