We can provide you with Soda Lime Borosilicate, Black and Quartz(SiO2) Glass Balls. Soda Lime Glass Balls are most common. They are Light weight glass balls, chemically inert and they allow to get excellent surface finishing. Applications are special bearings and valves, plastic bearings, low-cost check valves, metering pumps, flow meters, measurement instruments, agitators, optic fiber devices, ink cartridges, closures for bottle, shot blasting, grinding and they are even used in art and decoration fields. If you need one of the other types oof balls or other applications please ask.