Focus Adjustable Eyeglasses -3 to +6 Diopters Reading Glasses Focal Length Continuously adjustable magnification for clearer vision. Turn the dials to adjust for distance or reading instantly. Ready to use in less than a minute whenever and wherever needed. Ideal as spare eyeglasses for emergency situations. EXTRA DURABLE AND IMPACT RESISTANT: Made of polycarbonate material with a flexible frame that fits most head sizes. Impact-resistant lenses are designed to withstand drops and accidental impact, providing added durability. EASY TO USE: No need to visit an optometrist for a second pair of prescription lenses. Simply turn the dial to adjust the lenses continuously until achieving clear vision. No tools required—designed for convenience. MOST VERSATILE: Featuring Alvarez lens technology, these glasses are suitable for a variety of daily activities. Whether reading, watching TV, or driving, they help provide sharp visual clarity. STYLISH: Sleek, unisex design complements all face shapes and offers a modern look. INSTRUCTIONS: Before wearing, note the dials located on the side of each lens used for adjustment. Wear the glasses normally. To adjust the lens power, cover one eye and turn the dial on the opposite side—for example, cover the left eye and adjust the right lens dial, then cover the right eye and adjust the left lens dial. Adjust each lens individually. If vision remains slightly blurry, repeat the process as needed. With a simple twist, customize focus for any distance without a prescription. Quantity: 1 piece