Light and perfect design Solar power, No battery needed, Portable, energy-saving, eye-catching and free of pollution. The brighter the sunlight, the faster the fan turns. Solar power, No battery needed, Only works in the direct sun. C on visor or held by hand, it will bring you cool breeze. Great for traveling, fishing, climbing, playing golf and other outdoor activities. Utilizes sunlight to emit lights to solar panel, and convert light energy into electric energy that drives the micro-motor to make fan work. Blade material: plastic Modeling: ordinary round Model: 9721 Color: Black Size20*11*9cm Gross weight:84g Rated power: 0.2W Placement: clip type Specifications: Light and perfect design Solar power No battery needed Portable and energy-saving Eye-catching and free of pollution Only works in the direct sun Convert light energy into electric energy Package Included: 3/8/10x Solar Fan Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.