Keep your purring pal free from pesky insects with Sergeant's Guardian Pro Flea & Tick Cat Collar! This handy collar is specifically formulated to kill fleas, ticks, eggs and larvae, and it helps prevent new infestations for up to seven months. It also features a re-fur-eshing scent. This slip-on collar is sure to keep your feline fur-iend happy, healthy and itch-free!