Petmate's basic adjustable collar for a custom fit on your dog, or room to grow for your puppy. our basic nylon dog collars feature fray resistant poly nylon in a variety of stylish colors. lightweight collars made of soft, fray resistant nylon webbing & feature heavy duty stitching & tough metal buckles these adjustable collars are easy to take off/on collar & are ideal for a growing dog. nylon collars are created with high quality, long lasting nylon. royal blue, 1" x 26" 2 ply.