This product is the best I have ever used. I have been so pleased and excited about it being in my car. Bosley (a golden retreiver/chow mix) has not tried once to come through it. Before, he would come from back of SUV to driver to sit next to me. Works like a charm. He is safe and I am too. Sturdy, functional without being obtrusive. Fits and can be moved from one vehicle to another. I have not been this thrilled with a product ever. Highly recommend for anyone who travels with a pet, no matter how often or size of pet.