Works great and seems to be made of high quality/durable materials. Sadie the Yorkie loves it as it allows her to see out of the passenger window and windshield of my Jeep Patriot without having to stand on the seat as she used to. It's adjustable so you can adjust the strap allowing it to be higher, or lower depending on you or your pups preference. I purchased the medium size, Sadie is about 6lbs and has plenty of room to lay in it, or stand on all fours within it.