Features: brand new and high qualitys. Quiet strong wind, widely used. It is crafted of glues materials and can be used for a longers for time. Installation is simpler. Four sizes for your choices, 6/8/10/12 inches. Specifications: Material: Plastic Size: 6 inch/8 inch/10 inch/12 inch Color: White The product does not include the cover on the outside of the fan Package Includes: 1pcs 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.