Adjustable magnifier: Rotate the dial to adjust magnification according to your needs. Enjoy clear vision with convenient, versatile eyewear. Variable diopter range: Each lens adjusts from -6.00 to +3.00 diopters, offering flexible magnification control—eliminating the need for multiple prescription lenses. Ideal for daily activities: Reading, computer use, watching TV, and other close-up tasks. (Not intended for driving.) High-performance design: Lightweight frame with durable construction. Features impact-resistant polycarbonate lenses. Precision adjustment: Spherical lens design allows fine-tuned focus for a wide range of users. Specifications: Adjustable diopter range: -6.00 to +3.00 Frame color: Black Dimensions: 100 mm x 200 mm x 70 mm (3.94" x 7.87" x 2.76") Materials: Acrylonitrile butadiene styrene (ABS) + polycarbonate Includes: 1 x Adjustable glasses Notes: 1. Actual product color may vary slightly due to monitor settings and lighting conditions. 2. Slight measurement variations (±1–3 cm) may occur due to manual measurement.