Photochromic reading glasses are a great solution for those who hate constantly switching between reading glasses and sunglasses.Product name: Sports reading glassesMaterial: TR90 frame + resin lensFrame features: flexible and strong, not easily deformed, sturdy hinges, integrated nose padsLens features: high-definition, transparent, clear, blue light blocking, eye fatigue relief, color-changing lenses, progressive multi-focus.Lens magnification: 1.0x, 1.5x, 2.0x, 2.5x, 3.0x, 3.5xColor: black, red, orangeApplicable people: men, womenUsage: sports, reading, travel, party, fishing, office, home.packing listReading glasses x1Cleaning x1Glasses case x1Notice:1. Our photochromic lenses will change color according to the light conditions. When the light conditions are strong, the color of the lenses will become darker. When the light conditions are weak, the color of the lenses will become darker.2. Do not use paper towels, towels, clothes or alcohol to clean reading glasses.3. When the glasses are not in use, please put them in the storage box to avoid unnecessary scratches on the lenses and affect their use.

Glasses specifications: Lens width: 5.4cm/2.1in; temple length: 14.7cm/5.8in; nose bridge: 1.6cm/0.6in; lens height: 3.9cm/1.5in; frame width: 13.8cm/5.4in, suitable for large Majority of the population. Our glasses use TR90 frames and resin lenses. The TR90 frames are soft and comfortable, strong and durable, no pressure to wear, and the temples are tough and elastic without pinching the face; the resin lenses are clear, scratch-resistant, waterproof and not easy to scratch. Progressive reading glasses can easily meet your daily needs. The bottom layer is the intensity you choose and can help you read, the middle layer transition can help you see the small print on computers and mobile phones, and the top layer has no degree to help you communicate in daily life. The photochromic lens of reading glasses changes from indoor reading glasses to outdoor reading glasses. It has a photochromic function to protect against ultraviolet rays. The lenses will change according to the intensity of ultraviolet rays. Wearing a pair of blue light blocking glasses will protect your eyes from harmful blue light. Use electronic screens for long periods of time to keep your eyes from getting dry. Reduce eye strain symptoms when exposed to computers for extended periods of time.