Aspen Pet Petmate Mighty Link Comfort Chain (20”x1”)-Heavy NEW. Aspen Pet Petmate Mighty Link 20”x1” Chrome Comfort Chain, weighs 3.7 oz. For dogs up to 110 lbs. Reduces hair pulling, skin pinching and chain noise with black nylon woven through 3mm chrome links. Affords comfort and style for your dog. Same control and training as traditional chain collar. This collar is to be used when training with a leash. It is not recommended to be left on unattended dogs. Length: 20” x 1”. Measure dog’s actual neck size. Purchase a training collar that is 3” longer than the dog’s neck. For proper use, slide the chain through one of the metal rings. While facing your dog, form the collar into the shape of a “P.” slide the collar carefully over the dogs head. Attach Petmate leash and you are ready to walk. Model DE14140C. UPC 723503830263. Made in China. Promptly ships from a smoke-free California home.