Help protect yout pets from injury while traveling in cars. Adjustable web harness attaches easily to most seat belts with a universal seat belt clip. Keeps dogs safely contained where they can sit, lie down or stand comfortably.Made of strong durable woven nylon with plastic quick release buckles, and as an extra feature, this harness can be used as a conventional walking leash also. Measure the girth of your dog at its widest point for proper size. Girth sizes are as followed: X-Small 7-16", Small 12-28", Large 28-36", X-Large 32-44"