Seresto is an innovative flea and tick collar that combines the lasting performance of a topical treatment with the convenience of a collar. Designed for small dogs, Seresto protects pets for up to 8 months through sustained release technology, gradually distributing active ingredients—imidacloprid and flumethrin over your dog's coat and skin. This collar repels and kills fleas and ticks on contact, reducing the risk of disease transmission without the need for bites. The water resistant collar remains effective even after monthly baths, occasional swimming (duration reduces to 5 months with frequent swimming), or outdoor exposure & features a safety release mechanism that allows pets to break free if they become entangled.