Franks Deals Sentry Pro Flea & Tick Collar for Dogs Easy-to use collar kills dog fleas, ticks, flea eggs, and flea larvae Flea and tick collar protects for up to 6 FULL months - apply just twice per year! Fuss-free flea and tick prevention for dogs over 12 weeks of age Fresh powdery scent Flea collars and flea combs are important preventatives for controlling fleas