Flashing rainbow pen/promotional pen/light pen; ROHS,CE standard Features specification:flashing pen,light pen,LED pen,gift pen,promotion pen,fancy pen,funny pen,advertising pen,glowing pen 1)Flashing rainbow pen/promotional pen/light pen2)Can be flashing when give it a knock2)Any color in the panton is available3)OEM orders feasible4)ROHS,CE standard 5)Your own designs welcome