I disagree with the other review on this. I purchased this for my cat since all the other collars were leaving huge bald spots around her neck and fraying from her scratching it. I haven't had to adjust it at all and her hair is starting to grow back in the area where the other collars rubbed! I am very pleased with this product and would recommend it to anyone with the same problem like my cat had. My cat is an indoor/outdoor cat that uses a magnet to get in the cat door and I finally don't have to worry about adjusting it so tight that it rubs.