Sizing 5.71"x0.95x3.5". Made of plastic and soft silicone, even touch the USB fan blade carelessly when it runs, you won't get hurt. Desmountable blade and thin shade make it easy to put in pocket. Its flexible body, the fan is bendable and can be 360¡ã twisted and tilted, adjustable direction. It is more convenience, even outside, just need a USB port, you can enjoy cool breeze. And this super quiet mini fan keep noise far away. So you can use it in Library, Cinema, Office, etc. Just pick it!