I have arthritis in my back and legs and it is hard to cart my cat to the Vets.  This has made life so much easier. Having a strap to secure the unit to the car seat is great and the seat belt fits snug around the back as well.  Thank you to pet gear for making another great product. I have a stroller from Pet Gear as well and the quality is great.  I was really happy that Wayfair carries their products.