: 4mm,5mm,6mm,8mm,10mm,12mm glass beads,color beads ,seed beads,crystal beads SERIESCrystal glass beadsCHEMICAL COMPOSITIONQuartz sand SURFACE TREATMENT & TECHNOLOGYCrystalSHAPE DESCRIPTIONRound holeCOLORS & ... production, and also according to customers samples of mold production crystal Beads