Perfect for dogs that tend to "pull". Because of its small hook on the front of the chest, when the dog pulls, it is automatically diverted to his master, which promotes the exchange of glances. Adjustable straps. Although the diagrams referred to in the manual supplied. Each morphology is different, so you have to adapt. (It took four days to find the right setting). This article was recommended to me by a renowned dog trainer. (Sweet and positive method). Since my dog (Shiba) hardly takes. Available in red and black, easily washable, very light, very solid. I saw a great shepherd so wear suitable for all dogs. Considering the price, no reason to live without it!