Instruct: Classify the given Amazon review into its appropriate rating category
Query: I was not able to drive onto them as they ...

I was not able to drive onto them as they frustratingly squirted out from under all four tires at every attempt in my garage. So a jack will be required to lift each corner to position them under the tires. And my current floor jack is not low enough to fit, so to even use them I need to buy a new low-profile jack. It's not worth the extra expense and hassle, so they hang in my garage unused.