Large Size Lens 4.72X1.97 Inches: The lens size is large by 4.72X1.97 inches with larger field of vision, include 5 high quality interchangeable lenses with different magnification: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X. The surface of lens is strengthened with better hardness and good abrasion resistance, the lenses will not be blurred after long-term use. Designed with 2 Lens Slots: There are two lens slots on the head mount magnifying glass, the 5 different lenses can be used individually, or combined 2 lenses together to get stronger magnification: 3.0X, 4.0X, 4.5X, 5.0X, 5.5X, 6.0X. Detachable LED Headlight with Cold and Warm Light: The headband magnifying glasses includes a detachable headlight with 8 LED, 3 different light modes with cold light, warm light and mixed light, powered by 3xAAA batteries (not included). Press the switch to turn on/off the light and adjust the brightness by two levels. The LED headlight can be rotated to your desired angle. More Comfortable to Wear: The inner side of the headband is foam sponge, it makes the headset magnifier more comfortable to wear, with two knobs on the left and right side for freely adjusting the entire magnifier frame up and down to your desired angle. The headband adjusting knob can adjust the appropriate size (pull to adjust, press to lock) to match your head perfectly. Multiple Uses: The magnifying glasses with light is perfect for close-up precision work leaving your hands free, including reading, craft, sewing, needlework, knitting, beading, and hobby. It is also great for inspection, soldering, repairing, modeling, jewelry making or other professional use, a perfect gift for your family and friends.