Rainbow Magnetic Hematite 4x4 Drum beads 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! Approximately 82 beads per strand. Beautiful Rainbow finish with a hole diameter of approximately 1.2 millimeters. Not for children under 14 years of age. (Swallowing hazard). Magnet Safety Information
