Can be used as a hand held or a hands free magnifier when used with the neck cord supplied. Ideal for reading, sewing or other hobbies. The lens face has a diameter of 105mm (41/4") & a large magnification area of x 2. A small central magnification area of x 4 makes it suitable for close work. With a built in light, this magnifier can also be used in the dark. The cord can be stored away neatly within the handle. Length 250mm (10"). Width 120mm (44/5"). Depth 20mm (4/5"). Weight 200g. Requires 2 x AAA batteries (not included).