If you encounter problems during installation and use, please feel free to contact us..<br>You can contact us through Amazon by following below steps ：.<br>1:Sign in your Amazon account, Then click “Account & Lists” on the upper right corner；.<br>2:Select “Your order” ；.<br>3: Find our product order, then click “Get help with order” ；.<br>4: Select the reason why you are contacting seller, then you will be able to write us a message。.<br>.<br>UPGRADED MATERIAL, UPGRADED WATERPROOF LAYER FORMULA.<br> Made of upgraded Oxford polyester elastic yarn, that is very strong, durable and tear-resistance. The PVC lining waterproof layer using an upgraded formula, adding a specific proportion of vinyl oil, making the waterproof layer soft and less crumple, also tough, flexible and more durable than other similar products..<br>GOOD STITCHING, EFFECTIVE PROTECTION.<br>Superior textile process, 'Precision Two-Thread Stitching' gives more durability and rip-resistance, strong side improve abrasive resistance, with upgraded Oxford material, upgraded waterproof layer formula, even in the harsh environment it can also play a top protective role, whether it's rainy, windy, sunny, snowy or dusty! .<br>WIND-RESISTANT.<br>Considerate design adjustable hem rope on the cover bottom that can adjust the cover tightness to avoid the cover blow away. Don't worry about the strong wind day.<br>EASY FITTING, REMOVING, CLEANING AND STORAGING