✔ Specifications: Item model number: Reading Glasses Lens material: Resin Colour: Red, Pink, Black, Purple Strength available:+ 1.0,+ 1.25,+ 1.5,+ 1.75, + 2.0, + 2.25, + 2.5, + 2.75, + 3.0 ✔The aspherical surface of the lens is wear-resistant, transparent, clear and environmentally friendly, providing you with a good reading experience. ✔ Note: - It is recommended to test the color change effect from 9 am to 3 pm. After 3 pm, the UV light is weaker and the color will be lighter. - The stronger the UV light or the lower the temperature, the deeper the discoloration. There is no discoloration inside the car! - The lens needs to be completely exposed to the sun! It is recommended to test multiple times. - Our products are taken in kind, the color is professionally proofread, close to the physical tile map, due to the difference in color contrast and color temperature of the computer monitor, there will be subtle color difference, please refer to the actual goods received.