IMPORTANT SIZING GUIDE: This collar fits a medium dog with a neck size of 12-16 inches around. To determine collar size, please measure your dog’s neck with a sewing tape or string. That size will be your dog’s neck size. See sizing image in product images for more information. BUILT-IN NAMEPLATE: Collar comes with a stainless steel rivet on nameplate already installed and laser engraved with the most important information about your pet. DURABLE: This incredible material is waterproof, odor resistant and made to withstand harsh climate conditions such as extreme cold. COMFORTABLE: The material is soft to the touch and has a leather-like texture, making it comfortable for your furry friend. GUARANTEED FOR LIFE: Each collar is made out of the highest quality materials and has a lifetime guarantee for the quality of the materials as well as the laser engraving.