I have bought the necklace in early June because my dog has brought here in Northern Germany a day at least 5 ticks home and I was tired of the constant searching. After my dog had worn the collar about a week, the number of ticks has significantly subsided. Instead formerly 5 pieces per day there were then more than an occasional tick week. It has the effect did not diminish that my dog has often and extensively (ie during the summer several times a day), the water sought. The effect has until mid-October stopped (4.5 months), then I have lost the necklace, but not because the effect had worn off, but really only because it took me visually impaired and I thought the season for ticks was over.
The appearance is therefore my only gripe with the product. On a black dog that looks only in white available collar used to. In addition, it turns slightly yellowish after a few weeks. My initial fears, the collar could attract attention with unpleasant odor or a change in surface feel of the skin have not been confirmed. Also allergic reactions or skin irritation with my dog (as well as for me) of the Contractor. Since my dog wearing a harness, there were no problems when carrying the Scalibor-neck bands. How this would behave in an additional training collar, I can not judge.
Overall, I would recommend this because it is easier to handle and above all, much cheaper than the products that I've used. For the future I would like to see the necklace but in another color, so that it - depending on coat color - not so clearly noticeable. Otherwise: For me clear 5 star and a product that I will buy again next year.
