- Plastic stand with plastic translucent shell<br />- No tricky installation needed、 just peel and stick<br />- Automatically on when the car runs/off when the wheel stop running<br />- Makes impressive effects which vary with speed<br />- No batteries required、 powered by wind<br />- Super bright red + blue LED on both sides<br />                                                                                                                                Dimensions: 4.72 in x 2.44 in x 2.17 in<br />Weight: 2.3 oz