MEDIUM COLLAR MEASUREMENTS: 20 Inches long by 1 inch wide by 1/4 inch thick - Fits dog neck size 14.5 to 17.5 inches. ( Please measure your dogs neck size before ordering ). Dog lovers are thrilled with this new dog collar design. Combined with a winning combination of style, quality and comfort at a price you can afford. NEED A PLACE FOR DOG TAGS? No problem, we have you covered with a built in small ring next to the buckle. SOLID BRASS HARDWARE WITH LACQUERED FINISH: This keeps the buckle and d-ring rust proof in all weather conditions so your collar will last for years to come. LIFETIME GUARANTEE : We guarantee it, and we mean it. This is not a 30 day or 6 month keep your receipt “warranty”. We believe so strongly in the superiority of our product that we back it with a lifetime guarantee. If one of our collars ever fails due to materials or workmanship a replacement collar will be provided.