These glass beads are the substitute of sand or rice in Incense Burner.
The incense can be easily put in Incense Glass Beads. Also the beads are unbreakable and used permanently because they don’t absorb moisture like rice and sand.
The best benefit of Incense Glass Beads is that they are helpful for health because they emit the ultrared rays at a certain temperature degree.
The use of Incense Glass Beads can also be made for crystal vases with artificial flowers in a Buddhist Sanctum. Incense Glass Beads make Sanctum more elegant and dignified.

From:cnglassbead.com