Features: brand new and high quality The product should be mounted on the roof, which can save your space. Strong wind and quiet operation, ightweight and durable-. It is applicable for 12V motorhomes, trailers, RVs to use as an exhaust fan. Engineering compression material, more resistant to yellowing than ordinary ABS, has good flexibility, is not easy to age, and can calmly deal with various harsh environments. Dust-proof and insect-proof- nets- effectively block trash and dust from the outside. Specifications: Material:ABS Size:Approx.13.5cm/5.31inches Adjustable Height:80-160mm Color:White Style: Quiet Wind Package Includes: 1x Exhaust Fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.