Blueberry Pet Soft & Comfortable Sports Design or Jacquard Design Padded Dog Collar Neck 9"-12.5", Width 5/8"; The collar does not stretch itself, please make sure leave ONLY 2 fingers between collar and dog neck. A properly fitting collar and harness won't leave any room for your dog to chew The collar is not for tie out. NEVER leave your dog unattended with a collar on The 3M reflective threads are only stitched in part of the polyester webbing. Not the entire webbing is embedded with reflective threads. The metal D ring is matt grey coated to add durability All pictures are taken with our production samples from a size of Width 3/4", Neck 13-16.5". Please measure your pets carefully for making the right purchase. Always look at the size chart for the recommended weight range to confirm the size