Features: brand new and high quality Anti blue light glasses alleviates visual fatigue and discomfort from browsing mobile phones, tablets, gaming and working under fluorescent lights. Elastic hinge design, very comfortable to wear, not easy to clip your face. It is specially made for the elderly to return their eyes to a young and healthy state through anti blue light glasses. Resin spring hinge frame: ultra-light and flexible resin frame material for durability and comfortable long-term wearing. Casual frame design keeps you looking professional and stylish while working or playing video games. This product has different degrees and colors. You can choose the most suitable anti blue light glasses according to your needs. Package Includes: 1pc Presbyopic Glasses Specifications: Material: Resin Lens Size: Approx. Frame overall width 136mm/ 5.35in Mirror leg length 144mm/ 5.67in Frame height 39mm/ 1.54in Frame width 50mm/ 1.97in Nose spacing 14mm/ 0.55in Color: Blue, Green, Light Purple, Purple Glasses Degree: 100, 150, 200, 250, 300, 350, 400 note: 1. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.