Heavy duty *18oz. Vinyl Tarp, Black. These tarps are designed to last for years. The fabric is rated to -40 degrees fahrenheit and they can take the heat as well without fading. We make these tarps right here in the United States of America. We know about harsh Winter conditions. Many of these tarps are also used widely in the marine industry for a variety of purposes. Build to stand abuse, neglect or whatever you can throw at them our tarps will last and last. *18oz. refers to the weight of the vinyl fabric per square yard. The finished size on our tarps is the stated size. We don't sell "cut size" tarps. The tarp you receive may even be a 1/2" or so larger than the stated size. When was the last time you got more than what you paid for? We don't make your tarp until you order it so if you need modifications such as changes to grommet placement of other configuration please let us know when you order. These are very heavy duty tarps. You cannot find these tarps in stores. You can expect our tarps to last 4 - 9 years depending on environmental conditions. The fabric, webbing and grommets are resistant to acids, oils and alkaline. They are manufactured from the same fabric used on large semi trucks you see on most interstate highways. Questions? Need custom sizes? Send us an e-mail here Amazon. We respond to all e-mails within 24 hours and usually much faster.