Vibrant Life Reflective Polyester Adjustable Dog Collar, Black, Medium

it's a great dog collar even my dog loves it but she only wears it when going outside, when my son take the other 2 or 3 dogs and he pulls the collar and leash down she get really excited, she can almost jump over the fence, the Chihuahua can jump over and even my Husypoden don't try nor my Saint Bernard don't try so for now it works great. but if you have a Cattle Jack then this collar will work for you.