Gold Chain Dog Collar is 20X thicker with 18K gold plating over 316L Martingale stainless steel and Cubic Zirconia. The snap buckle for the collar is designed to be strong and withstand 700 pounds of force. Chain width is 10MM, weight ranges from 69g to 138g depending on size. Chain is not adjustable. Highly durable and made to withstand time and strong jaws without rust or corrosion. Makes a great gift for medium to large dogs such as Saint Bernards, Huskies, German Shepherds, and Pitbulls.