2 LED Lights: The head magnifier glasses is equipped with 2 , pure white light color. Two levels of brightness adjustment, high brightness and soft brightness, can be used under illumination conditions. The illumination angle of the LED light can be adjusted so that the can illuminate on the surface of the object being observed accurately. Flip-Up Design: Widely used in handicraft, reading, painting, watch & electric repairing, jewelry identification, etc. When not using double lens combination, the lens need not to be removed, the front lens can be flipped up to use a single magnifying lens. The lens storage box can store unused lenses to prevent them from wearing out. The carrying bag can hold glasses frame and lens storage box for easy storage and carrying. Multiple Magnification: Can be combined in pairs to achieve up to six kinds of magnification, namely 1.5X, 2.0X, 2.5X, 3.5X (1.5X+2.0X), 4.0X (1.5X+2.5X) and 4.5X (2.0X+2.5X), the lengths are 357mm, 274mm, 204mm, 158mm, 136mm and 125mm respectively. The lengthened magnifying lens has a and brighter filed of view. Premium Quality: Upgraded lens slot, firmly locks the lens, it also makes it easier to install and remove the lens. Ergonomically designed glasses frame, effectively prevents the magnifying glass from falling off and reduces the pressure on of the nose, comfortable to wear. Colour: black + white Material: plastic Size: 175x172x60MM Package Contents: 1 * glasses 1 * USB cable 1 * lens storage box Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.