These UV ink markers are completely invisible in normal lighting, but illuminate incredibly bright under UV blacklight! Use these ink markers to implement security procedures, secretly mark your valuables, write hidden messages, artistic application, or just for plain fun! Each marker is full of our...

Mighty by NPK Kills Adelgids, ants, exposed aphids, apple red bugs, beetles, cabbage loopers, caterpillars, centipedes, earwigs, fruit tree leafrollers, fungus gnats, grape phylloxera, psyllids, plant bugs, scale, sawfly larvae, silverfish, sowbugs, spider mites, spittle bugs, springtails, stinkbugs...