Fits the following Broil King® gas barbecue grills: Baron™ 300 Series Monarch™ 300 Series Royal™ 300 Series Crown™ 340 / 320/ 310. The cover is made of durable polyester fabric, trimmed with durable blue threads. It has a ventilation system used to increase airflow and reduce moisture under the cover. The cover is additionally equipped with rubber grips for easy removal and installation. In addition, Velcro sewn into the material ensures an even better fit of the cover to the grill. A grill protected in this way can be placed outside all year round.