Seatbelt Safety Harness Dog car seat safety is a growing concern. For a dog car seat to be properly installed requires little effort, but affords lots of safety! This new Seatbelt Safety Harness is the safest way to secure your pet while traveling. That's why we call it "Maximum Security." This is the only one we know of that was put through actual crash test development (meeting the same standards as a child safety seats), making this the safest Dog Car Safety Harness ever made! >> NOW in Larger Size for Medium-Sized Dogs<<PLAY MOVIE A built-in universal metal buckle clips directly into your seat belt receptacle. Tested for up to 30 pound dogs at 30 mph. It took ballistic nylon, due to its strength and durability, as the material needed to pass the test. To keep the dog comfortable it is padded on the inside. Colors: The 2 smallest sizes come in red only, and the medium size in silver only. (Coming soon: an optional receptacle strap for use in Lookout Car Seats).