River Ridge Leather Dog Collars are handmade from high quality, oil-tanned Latigo leather for very high tensile strength. Latigo is a 100% natural, traditional leather tanning process that produces very strong harness leather with no impregnated toxins or heavy metals to come into contact with your dog's fur and skin. Solid brass hardware is rustproof and virtually unbreakable. Made to last for the lifetime of any dog. Our solid brass hardware includes a keeper ring for displaying your dog's license and name tags. But why take the chance of losing them? We can hand-stamp your dog's name or your telephone number onto any collar for only $1.00. Dog Collars are measured end to end. Dog Collars need to be 4 or 5 inches larger than the dogs neck