Keeping cattle visually identified just got easier with the Prima Glo fluorescent livestock marking paint. The 500-ml spray can holds bright florescent, glow-in-the dark paints in orange, green, hot pink, yellow and purple, for easy group marking of open cows and vaccination groups. The paint is great for monitoring groups of animals or quickly identifying a single animal, even in low light conditions. The marking paints remain visible on the animal for two to four days and easily contrast with any animal background color. Retail prices vary. Contact: Prima Tech USA, P.O. Box 336, Kenansville, NC 28349; (888) 833-7099; www.primatechusa.com.