Using a dog seat belt takes just a few seconds once you've done it once. Fit your dog's harness as normal, then bring the seat belt restraint across and insert one end into the car's seat belt buckle, just like a regular human seat belt. The other end clips onto the D-ring of your dog's harness. The CocoPup London restraint is fully adjustable from 68cm to 112cm, so you can set the length to suit your dog's size and their position on the seat. The Maxbone version easily extends from 18" to 27" to provide a wider range of movement, which helps your dog stay comfortable on longer journeys without being able to roam freely around the car. Once clipped in, give it a gentle tug to check it's secure before you set off.