High refractive glass bead Properities A) color: white Use High refractive index glass beads use in road marking paint, road board, road sigh, clothes &bags, reflective sheeting ^it provides excellent night retro-reflectivity. Size Index1.93 uncoated & coated From10 micron to 1200 micron Index 2.2-2.4 From 10 micron to 200 micron Packing Nw.: 25kgs/drum 25kgs/bag, 1200kgs/pallet, 24000kgs/20fcl.