Professional-Grade Magnifying Glass Made with scratch-resistant, shatterproof, crystal-clear acrylic lens designed for seniors, students, professionals, individuals with low vision, and macular degeneration. Exceptional Comfort and Eye Health High-quality shatterproof lens provides excellent 8X and 30X magnification without smearing or blurring images, significantly reducing eye strain. This magnifier can be tilted up or down; it can be clamped to a desk, making it suitable for jewelry appraisal, model making, crafts, and hobbies. Specifications: Material: ABS plastic, metal tube, metal clamp, acrylic optical lens Weight: 268g Magnification: 8X large lens, 30X small lens Battery: 3 x 7-cell batteries (not included) Lens Diameter: 107mm Note: Do NOT place in direct sunlight to avoid fire hazard. Do NOT clean with corrosive liquids; use a soft cloth.