Glow in the dark glass mosaic. Glow 8+hrs. Acid, water resistant. Colors selectable. ISO9001, RoHS, ... , purple), photoluminescent printing paper / photo paper, photoluminescent sheet / plate, photoluminescent films, photoluminescent shoelace / strings, photoluminescent glass, photoluminescent cup chap, photoluminescent mosaic, photoluminescent stone / pebble ...