Material: PP+ABS+PVC Colour: Black Style: big circle 7.5CM Weight: 49G Applicable to: urban cycling, short and medium-distance travel, commuting to and from get off work Function: safety rear view function, see the car coming from the rear side clearly, colorful NOTE 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products