I use Protect-A-Tow and I love it. It's easy to install: 4 eye bolts that need to be drilled under the bumper of the RV and 2 eye bolts that need to be drilled under the bumper of your TOAD. After doing the initial installation, all you need to do on your next trip is to hook up your TOAD, then snap the mesh screen onto each eye bolt and then unfold and connect the PVC cross bar....less than 5 minutes max. It not only protects your TOAD from rocks, but it also keeps your TOAD cleaner than if you didn't have it. Plus, it folds away nicely and you can spray it off with water since it does get road grime on it. I've had mine for 3 years and no issues.