Multiples: 10 times 15 times 20 times 25 times Objective lens diameter: 10 times 15 times the diameter is 20 mm is a single-layer lens 20 times 25 times is 16 mm is a double lens Main material: ABS + acrylic lens Product weight: 156 grams with packaging Packing size: 147*122*61mm Features: The magnifying glass is worn on the eyes, like glasses, easy to take and wear. It can be used for medical surgery, small and delicate operations, sewing, embroidery, writing, reading and other close-up uses. Note: These are glasses with multiple magnifications to obtain optimal vision, you need to get closer to the object