Replacement Color Wheel</br>Compatible with: Optoma HD70 DV10 HD72</br>Each item is tested before shipping</br>Offers sharp?? detailed?? high-definition video</br>Digital Light Processing microchip technology</br></br>Product Description</br></br><br>Specification: <br> <br>Parameters: 7 colors?? 7 segments?? three screw holes <br> <br>Diameter: 42mm; <br> <br>Usage:Signal detection point is under the red color;Don't need to change the black stick position?? directly mounted on the Optoma HD70 DV10 HD72 machines <br> <br>Compatible with: Optoma HD70 DV10 HD72 <br> <br>Package include:1xcolor wheel Optoma HD70 DV10 HD72</br><br/>http://www.amazon.com/gp/product/B0148934UG