- Provides 8-months of continuous flea and tick prevention
- Seresto flea and tick collar for large dogs works through contact, so fleas and ticks do not have to bite your dog to die
- Veterinarian-recommended flea and tick prevention for dogs in a convenient, odorless and non-greasy collar; No need for messy monthly treatments
- Starts to repel and kill fleas within 24 hours of initial application
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