WIDE APPLICATION: Made of high quality plastic and acrylic, the soft sponge inside of the magnifier ensures a comfort wearing. Also, can help you to improve your low vision and release your hands in work at one time. For different use: reading, painting, observing, modeling, repairing, sewing, soldering, jewelry making, and other hobbies/crafts. A perfect fathers day gifts ! NOTE:Please refer to our 3rd ad picture to adjust the lens and the focal length to finish the magnification. COMFORTABLE&ADJUSTABLE HEADBAND MAGNIFIER: The inner side of the headband is wrapped with a soft sponge, which makes the head more comfortable when worn. Combined lens magnifying glass with 3 knobs. You can use the sides 2 knobs to adjust the height / angle of the lens, and the another one knob on the back side can adjust to fit the head size.The combined lens can adjust the angle or be folded. The small round lens is 360°rotatable, which can be folded or rotated upwards when you don't need. DOUBLE LENS SLOT DESIGN: Handsfree headband magnifying glass is designed with two lens slots and one small fixed front round lens(8X). You can put one or two lenses at a time on the slots. We have provided you five replaceable lenses (1.0x, 1.5x, 2.0x, 2.5x, 3.5x) and the small round auxiliary lens (8x). NOTE:Please refer to our 3rd ad picture to adjust the lens and the focal length to finish the magnification. HIGH QUALITY LENSES: Come with 5 replaceable lens and one small round auxiliary lens, which are made of shatterproof crystal clear magnifying acrylic lens designed, high definition, light weight. The small round auxiliary lens is 360°rotatable. You can combine this 5 lens and small round lens (8x) to get 23 kinds of magnification to meet your different needs: 1x, 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 8x, 9x, 9.5x, 10x, 10.5x, 11x, 11.5x, 12x, 12.5x, 13x, 13.5x, 14x. RECHARGEABLE & ADJUSTABLE LED LIGHT: Our headband magnifier with 3 led lights has the function of detachable and adjusting the direction of illumination. When using, you can adjust the illumination direction of led for more precise illuminating angle to meet your need. Also, you can remove the battery to charge. It takes four hours to fully charge through USB cable. Fully-charged battery can make LED light last continuously for 8-12 hours.Lens Material: Acrylic,Glass. Batteries Required?: Yes. Color: Black. Brand: Dilzekui. Date First Available: December 3, 2021. Best Sellers Rank: #89,657 in Health & Household. Customer Reviews: 4.3 out of 5 stars 173 ratings 4.3 out of 5 stars. Batteries: 1 Lithium Ion batteries required. Item model number: HBFDJ-HB. Country of Origin: China. : B09DD79KNN. Manufacturer: Dilzekui. Item Weight: 1.34 pounds. Package Dimensions: 12.95 x 9.53 x 2.8 inches.