Seamless progressive bifocal reading glasses with a practical design Seamless focal zones: Progressive bifocal lenses have no obvious dividing line between focal points. Move your eyes from to bottom to see different visual areas near and far, with no need to take off your glasses. Frameless comfort and durability: Frameless reading glasses are made of TR90 material, which is strong, flexible and lightweight. They flex under pressure and fit comfortably to the contours of your face, providing all day wearability. Prescription options tailored to age range: Lens power options are 1.0x (4549 years old), 1.5x (5054 years old), 2.0x (5559 years old), 2.5x (6064 years old), 3.0x (6569 years old), 3.5x (7074 years old. Choose the power that fits your needs. Antiblue light protection: These glasses effectively block blue light radiation emitted by electronic devices such as computers, smartphones and televisions. This helps reduce eye fatigue and headaches and provides protection for your vision. Key benefits and practical use Solves the need to constantly switch glasses or remove them when moving between near and far tasks. Lightweight, flexible frame design that fits comfortably for long wear. Clear guidance on selecting the correct power based on agerelated visual needs. Protection against blue light to support comfortable screen time and overall eye health. Usage scenarios Reading tasks up close: books, newspapers, labels, and fine print without removing glasses. Computer and desk work: comfortable intermediate viewing distance for extended screen time. TV viewing or presentations: suitable for midtolong distance viewing from a seated position.