Xray Markers Glow with BB’s

GLOW in the dark BB Markers! Pale white green in the light and glow green in the dark. --Size: These are roughly 2 in x .75in --Sold as a set of two; one "L" and one "R" --2-3 initials can be added free of charge. --All of these come with lead lettering. 

To activate a good glow :
3-4 mins of ultra violet (black) light.
7-8 mins of direct sunlight.
21-23 mins of fluorescent light (strip lighting or energy saving bulbs)
24-26 mins of incandescent light (standard filament bulbs)