Looking for effective flea and tick control that's easy to use and goes wherever pets do? Look to the Vet-Kem Breakaway collar. Its long-lasting protection is also economical for households with multiple pets. Up to five full months of flea and tick control, plus a breakaway design for added safety. Breakaway design allows a cat to free itself if its collar catches on a fixed object. Molded plastic buckle greatly reduces the possibility of neck irritation and buckle failure. Kills fleas and ticks for up to five full months