Dog Safety Harness - Keeps Your Dog Secure & Protected While Traveling in a Car - Silver - Size Medium (M) Snoozer's car safety harnesses are the only pet harnesses to be crash tested to the same standards as a child safety seat. Unique vest design fits around your dog's chest Seat belt latch attaches to most car seat belt buckles Helps avoid injury to your dog during sudden stops Adjustable straps allow for a custom fit