Optical glass with high definition image quality, effectively isolate water droplets and water vapor. Aluminum alloy frame is more practical, aluminum alloy frame is reliable and firm. Wear-resistant and scratch-resistant, sturdy and more STAR - Under the action of point , it can diffract the light points in the scene, so that each light point on the photo radiates a specific beam of light, in order to achieve the effect of radiance. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Camera Lens Filter:Star Colour:Dark Gray Material:Light aluminum frame optical glass Package Contents: 1 * Lens Filter 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.