Twitfish&reg; - USB Clock FAN - Displays Hour, Minute and Seconds Hands - USB Powered Fan - LED Clock Face Appears on Spinning Blades USB powered fan LED - Clock face appears on spinning blades - Displays hour, minute and seconds hands Soft blades for safe use - Keeps time even after being removed from USB port - Plug in and go, no installation On/off switch Press and hold on/off switch to set time Flexible iron goose neck  Angle in any direction/height Blades made from PVC plastic ABS - Casing Red and green LEDs create clock face Fan diameter approx. 10cm Measures approx. 35cm