Review on Universal Carbon Fiber Black Rubber Lip Spoiler, Side Skirts And Front Bumper Protector For Scratch-Resistant Car Exterior - 2.5M/8.2Ft Car Body Kit Trim Accessories by Jose Baldwin

As is, works great for a lip on the front lip or bumper, but if you're using it to protect the bottom of your rocker panels, the leading flap drops down too much, reducing ground clearance.

Simple fix with some 3M VHB tape is to flip the guard so the bigger edge contacts the bottom of the side skirt. Adheres perfectly and you have twice the contact area available.One roll is enough for both sides, check your scrape areas to make sure you cover enough of the affected area.