With these stylish collars from Rogz, your dog will be a little nicer than all the other dogs. Collars that are easy to put on and take off - let your dog avoid collars when you're indoors. Made of soft but durable nylon, with sewn-in reflective threads for better visibility in the dark. Facts about Rogz Utility Collar: RogLoc buckle prevents the buckle from accidentally coming undone. Molded ring, not welded. Rounded at buckle and leash attachment to avoid rubbing on skin & fur.