Color: Black, Black-Red Frame Material: PC Style: Fashion, Classic Lens Technology: Blue Light Blocking, Progressive Multifocus Lens Material: Resin Magnification Strength: 1.0x to 4.0x Type: Progressive Multifocal Reading Glasses What are progressive multifocal reading glasses? Progressive multifocal glasses feature an upper lens area designed for distance viewing, a lower area for near viewing, and a gradual transition in between for intermediate distances. Most wearers require approximately one week to adapt to these lenses, though adaptation time varies by individual. If dizziness occurs, move slowly and take care when walking. When going downstairs, adjust your glasses position to use the upper portion of the lens for improved safety and comfort. Product Size: Total Width: 137mm (5.39 inches) Frame Width: 52mm (2.05 inches) Frame Height: 42mm (1.65 inches) Nose Bridge Width: 16mm (0.63 inches) Temple Length: 135mm (5.31 inches) Weight: 21.6g (0.76 oz) Package Included: 1 x Reading Glasses Note: 1. A 2-3% variation may occur due to manual measurement. Please verify all dimensions before purchase. 2. Slight color differences may be observed due to lighting conditions and screen settings.