This Patioflame cover helps protect your outdoor gas fire pit in adverse weather conditions, also hides your propane tank while the Patioflame is in use. Made from a heavy-duty black 600D polyester vinyl, which is heat, UV, and crack resistant. The velcro tie down straps ensures that the cover will stay in place. The Patioflame® cover also features a wind resistant design. The fresh air vent allows air to flow freely which helps eliminating mildew and fungus.