Specification: Lens Magnification: 8x 15x 23x(use 2 lens in one time) Power Supply: 3 x 1.5V AAA battery (Not included for safety) It includes 2 size (8X 23X) magnification. It is advisable to choose lens barrels of appropriate magnification according to the size of the object to be observed. Left/right double eye patches magnifier with LED, You can adjust the led brightness according to demand.(High / Low 2Mode)can help work in low-light conditions 3 x LR1130 Batteries Included) eyeglasses legs according to their own needs to adjust the length more comfortable and tight wearing. Perfect for mechanical processing, jewelry appraisal, clock repair and miniature engraving, etc. Too high magnification is not suitable for reading books. For its eyeglass type design, it is not suitable for person who has limited eyesight colour: White Material: ABS & Acrylic size: 160x72x51mm Package Contents: 3 x Magnifying Glass Only the above package content, other products are not included. Note: Light reflection 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. watch clock magnifying glass clock magnifying glass LED Magnifying Glass Jewelry magnifying glass