They are commonly used to protect vulnerable items such as machinery, tools, crops, fertilizer, stacked lumber, unfinished buildings, covering the loads on various types of trucks among many other objects. These tarps can withstand extreme weather conditions. This Clear PVC Vinyl tarp is 20 Mil Thick. It is also highly UV resistant. It has grommets every 24" apart and heavy-duty brass #3 grommets. It is great for patio's and outdoor enclosures.