- 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 + green + blue LED<br />                                                                                                                                Dimensions: 3.19 in x 1.69 in x 1.18 in<br />Weight: 1.36 oz