Each year, children line up in front of school nurses to be examined for head lice. While reliable data on how many infestations occur each year is unavailable, there are an estimated six to 12 million occurrences every year in children ages three to 11. The most common way to develop head lice is by having contact with an infected person. Head lice, contrary to popular belief, cannot jump or be carried by pets. Lice move by crawling, and spread with the sharing of scarves, hats, brushes, sports uniforms, etc. In the past, the most effective way to treat head lice was with the use of toxic shampoos—which create safety concerns when used on children. LiceGuard has developed a non-invasive product for the treatment of head lice. The Robi Comb has metal teeth that kill the bugs on contact, and allow them to be combed away. The Comb also uses an audible signal to alert parents and nurses about the presence of lice. Robi Comb is available at Walgreens, CVS and Rite Aid for $29.99.