Seresto - 8 Months Flea & Tick Protection Easy to use, non-greasy, odorless flea & tick protection, in a convenient 8-month collar Kills and repels fleas and ticks through contact. No biting required For dogs and puppies over 7 weeks and above 18 pounds Veterinarian Recommended Water-resistant, No need to remove for swimming or bathing Seresto Dog Collars Sort By Default Title - A to Z Title - Z to A Price - lowest first Price - highest first Time Added - latest first Popularity - most popular first Sales - best selling first Seresto Flea Collar for Large Dogs $40.95 Seresto Flea Collar for Small Dogs $39.95