It is a fisheye lens, which allows it to capture a wide-angle view of the environment. Made of high-quality materials to that it delivers and clear images. The replacement lens can be installed by removing the old lens and screwing the new lens onto the camera body. The replacement lens is designed specifically for X3 camera, so it is not interchangeable with lenses from other cameras Compatibility:for X3 Camera Colour:Black Material:Plastic Package Contents: 1 * for X3 Lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin