Intrusion-proof ventilation. With mosquito net. Rain protection through downward facing gills. Easy handling. Quick to insert and easy to remove. Can be opened from the inside, thus effective theft protection. Visually appealing. Sturdy black aluminum design. Sleep well at night, leave without worries in summer, air for the pets, this is ensured by the fresh air grilles in the cab. Sufficient air circulation is achieved when both ventilation grilles are installed. Burglars stay outside, because the grille can only be operated from the inside