A review:
I bought this to secure my rather over excited dog in her car seat as the ones that clip into the seat belt weren't for her as she twists and turns and gets tangled. Now she still does this but because this one goes over the headrest and allows for the belt to twist, she no longer is at risk of hurting herself or getting tangled up. It's very high quality and also doubles up as a lead and has an option for the clipping onto the car seat belt buckle. It has an elasticated part at the top which allows for a bit of give, I've found this great for my little wriggle as she'll try and jump in and out of her seat before settling, it just gives that extra room for her not to hurt herself yet holding her safely . I'm very impressed indeed with this car seat belt and would highly recommend it over a buckle clip seat belt.