1. Protective Cover for Window Air Conditioner: Molded aluminum cover to protect your air conditioner during periods of non-use, preventing dust and dirt from entering the unit. It also prevents cold air from entering the house, limiting heat loss and helping you save on your heating costs. 2. Four Sizes Available: M: 80 x 30 x 57 cm, L: 86 x 35 x 60 cm, XL: 96 x 40 x 70 cm, XXL: 105 x 40 x 75 cm. These sizes fit most outdoor air conditioners. Measure your air conditioner's dimensions before purchasing and leave enough space. 3. [DURABLE] Made of thick, crack-resistant, reinforced polyurethane vinyl, this material protects window air conditioners from dirt and debris when stored during the off-season. 4. [FUNCTION] The air conditioner's outdoor cover extends its lifespan by protecting it from the elements (snow, rain, sun, dust, leaves, etc.) and prevents significant maintenance costs. 5. [NOTE] Before using the cover, make sure the air conditioner is turned off and that no sharp objects are on it.