Rain covers that stay put without stakes or sandbags! Steel chain in edge hem all around keeps wind from getting under so these tarps stay down, even in winds up to 65 mph. Industrial 16 mil vinyl-polyester fabric with UV and mildew inhibitors. Major League style fits inside dirt circle for optimum moisture management. Thousands used by all levels of baseball from Little League to the Majors. Use separate installer device for easy storage, installation and take-up. Standard color Forest Green and ships within 24 business hours. Other colors available, call for details.