Works 8+ months. My dogs have never had a flea because of this collar and it works. No odor and adjustable lengths.

I’ve been using Seresto collars for a few years now. Much easier and more effective than drops or pills.

Best collar I have ever tried!

Heartgard plus works amazing on my dogs, plus I believe is less harmful compared to other products. The seresto collar worked very quick! My dogs got fleas at the end of the season and this collar killed all fleas I’m basically a day! I have 10 rescue dogs so I pass the collar between all of them and every one is flea and tick free!

The product works, no side affects and don't have to worry about reordering for months!