Collars That Cut Into Neck Dog Terrible. It may also be made of other materials such as cashmere or cotton. Thinking outside the box, many people have successfully put “bark collars“ on dogs that freak out on the leash,.

Electric fence collars electric fence collars typically have metal prongs that push against a dog's neck and deliver a shock if he breaches boundaries. And are typically turned down or scrunched under the neck. When dogs pull against their collars, the front of their necks sustains the most amount of trauma.