4 month supply. SAY GOOD-BYE TO FLEAS! Kills 98%; - 100%; of fleas within 24 hours. Each card of Advantage flea control contains four ampules, and one ampule will last up to 4 weeks.
Simply cut tube open, squeeze contents between pet's shoulder blades, and relax. Advantage flea control spreads naturally with the help of the pet's natural movement - providing immediate relief from fleas. Can withstand a shampooing between treatments. Go to www.nofleas.com for more information.