"petmate's basic nylon collars were created with high quality, long lasting nylon. choose an 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 for years of dependable use. these adjustable collars are easy to take off/on collar & are ideal for a growing dog. select from a variety of colors & convenient lengths.