dogIDS Personalized Waterproof Camouflage Safety Dog Collar SIZE: This collar is 1 inch wide and will fit dogs with a neck size of 18-22 inches. To determine collar size, please measure your dog&#8217;s neck with a sewing tape or string. SAFETY FEATURES: This collar features an added ring that acts as a pivot point. This pivot point provides a little extra wiggle room for your dog in the event that their collar gets stuck on something like a branch or fence. With this safety ring, should your pet&#8217;s collar get caught on something, they&#8217;ll be able to wiggle out and avoid choking in a scary situation. WATERPROOF: These USA made collars are constructed from poly coated nylon webbing called BioThane. They are waterproof, odor resistant and weather-proof. 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. 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.