Size information: The dog trainer leash is about 1.5 cm in width and the single-sided rope is 30 to 50 cm long, which fits most dogs well; Light weight makes it easy to carry; It can also be adjusted to the length of rope you need; Take a pleasant walk with the dog in the most comfortable way; When buying two dogs of different sizes, please choose according to the size of the larger dog Reliable material: Made of high quality nylon material, this no tangle trainer leash is safe and durable, not easy to break by pulling or chewing, can be used for a long time; In addition, it does not absorb water, rot or mildew, which is easy to clean; After washing, please dry before use Double head adjustment design: The length of both sides of this dog leash coupler can be adjusted; You can adjust the length of both sides to fit two different size dogs; Just tie a leash to this pet separator harness and you can control 2 dogs safely and prevent the 2 dogs from causing inconsistent directions by