The Trunk Guard protects the interior of vehicles and their trunks when transporting plants, fertilizers, salt, pesticides, corrosive chemicals, greasy parts, wet, muddy items, and more. It's also useful for protecting other surfaces such as carpeting, wood, or cement when storing such materials. Made of strong, woven poly material and lined with 3.1mil clear poly to keep spills contained, it is ideal to prevent potential messes from staining.