Bainbridge nylon double ring collar has two fully welded D-rings for added security and strength perfect for stronger & bigger breeds. Features extra wider webbing on the Extra Large size for larger breed dogs (3.8cm width), d-Rings also alleviate the pressure from the neck and provides a comfort fit between your dogs neck and collar. Features a high quality quick release buckle, heavy duty D-Rings for lead attachment and small black D-ring for registration tag attachment. Premium nylon & heavy duty stitching.