They are great and work great. I used them to drive an RV through a backyard gate and didn't even feel the curb. However, when other reviewers say these ramps stink, they are not kidding. They were in our house for 20 minutes and for the rest of the night our house smelled of tires as did everything within 10 feet of the ramps. The smell is so strong it is almost unbearable. We took it to the garage and it smelled like a tire shop for several weeks. Oddly enough it seemed normal for a garage haha. Seriously, leave them out for at least a week. Don't even bring them back after sending them like I did. You will regret it. Although they work great for their intended purpose.