Size: Dog- under 18 lb

Seresto combines two active ingredients, imidacloprid and flumethrin.

Small dog flea collar provides 8 months of continuous flea and tick prevention collar works through contact, killing and repelling fleas and ticks, so they don’t have to bite your dog to die.

Active ingredients imidacloprid and flumethrin are slowly and continuously released in low concentrations, spreading from head to toes, even the tail, over your dog’s coat and skin flea and tick dog collar also aids in the treatment and control of sarcoptic manage and kills lice.

Vet-recommended flea and tick protection for dogs in a convenient, odorless, non-greasy collar; no need for messy monthly treatments.