Only Natural Pet Easy Defense Tag - Natural Collar Attachment for Dogs & Cats - Lightweight, Water-Resistant Design for Year-Round Use - Long-Lasting Comfort and Protection for Up to 12 Months

First, in response to some of the less positive reviews, this tag is intended as a pest deterrent, not to eradicate an already existing infestation the way as do the more expensive prescription meds.Next, I've been using this tag on my labrador for two years, and just purchased the third, and I'm extremely satisfied with the results. We've had no flea infestations even though we live in a generally problematic area. Not that I haven't seen ANY fleas on him, however. Pointedly, I have seen over the period of two years probably a sum total of six to eight fleas that were found during flea combing sessions, which I continue as an added precausion during high risk seasons. I should note these other precausions I continue to utilize: Diatomaceous Earth spread in yard periodically through summer and autom months, natural flea and tick repellant spray periodically during high risk seasons, plus while I allow my dear dog to run free in our yard, I do not allow him to run free in wooded areas, instead he remains on a leash and within cleared paths during adventurous hikes and walks. Further, it might be helpful for some to know that the reason I switched from vet prescribed flea and tick meds to this more natural solution was because my dear dog began experiencing seizures, but since the switch he has not had one major epileptic seizure or episode. Finally, there is one thing that while fairly insignificant it should be noted as a small inconvenience with this product.The O-ring that comes with the tag is of little quality. It catches on blankets and carpets easily pulling and bending out of shape, exposing the tag to possibly falling off and becoming lost. Therefore, I suggest purchasing different O-rings for securing the tag to the collar. I do this and it works out much better.

I have these on my cats but I really don’t feel they work. Fleas still jump on them. It’s a great concept but not really worth it. I really wanted to like this.

These work so well. A nd no harmful ingredients

UPDATE: years later I am still using these and still so happy. One note though, the ring they send with it is flimsy and terrible. I have lost two of these early over the years and had to repurchase. The company needs to send better rings with it so you don't have to purchase those separately.I purchased two of units, one for each of my medium sized dogs. I live in deep North East Texas (piney woods) in a terrible flea and tick area. I held off on reviewing this item for almost full year to evaluate how well it works during all seasons. It is absolutely the best flea and tick preventative I have ever used with my dogs. I have enjoyed the company of indoor dogs who go in and out via a dog door for many years now and have tried everything available from vet prescribed to herbal (natural) preventatives. I followed the instructions and put these on my dogs collars 2 months prior to flea season. I could not be happier. I witnessed my dogs scratch a handful of times over the last year and examined the puppy dog immediately finding no fleas. I did find one tick on one dog's head during the summer. I am getting ready to order two more tags before the next Spring and Summer seasons here since the packaging says it works for one year. I can't say enough about this product.By the way, I didn't receive these free. I purchased them both because I was searching for a more natural remedy that actually works.

Still getting fleas although not as bad.

Haven't had any fleas since I put the tag on my dog last March. Unfortunately, the ring that comes with it is not sturdy and he lost the tag so I had to order a new one.

I have pulled over 100 ticks off of my dog since putting on this tag!!! I finally took it off of him and I’ve taken two off of him in the past week without the tag. I would totally get a refund if my window was till open. But I definitely feel like buyers need to know that snake oil would probably work better!It’s been a few more weeks and he’s not gotten another tick since I took this off of him. I’m extremely upset because now my bully has tons of bumps from these ticks. I trusted this POS to help my dog. Be safer for him. & they just lied. DONT buy this scrap metal!

It works great keeping fleas and ticks off my dog. He has not had. By allergic reaction to it unlike the medications the vet prescribed. I’m very satisfied with it.