... .glass beads without hole beads,glass beads for road mark Size: 0.2-0.4mm,0.6-0.8mm,1.0 ... -1.2mm,2.0- SERIESopaque colours lustered glass beadsCHEMICAL COMPOSITIONQuartz sand SURFACE TREATMENT ... 4mm,0.6-0.8mm,1.0-1.2mm,2.0-2.5mm,3.0mm-3.5mmBRIGHTNESSClear and bright-coloredUSAGEJewelry,clothing,shoes,bags ,etc. ... according to customers samples of mold production glass beads for road mark