Specifications:Lens diameter: 107mm(large lens), 24mm(small lens)Magnification: 2.5x(large lens), 5x(small lens)LED qty: 2LED power supply: 3 * AAA Batteries (Not Included)Color: SilverProduct weight: Approx. 121g / 4.26oz(Magnifying glass only, no including metal hose)Package size: Approx. 20.5 * 20.5 * 9.1cm / 8.1 * 8.1 * 3.6inPackage weight: Approx. 389g / 13.74oz Features:Metal hose can be bent freely at any different angles.Lens height and its position can be adjusted at will to meet the different needs.Two LED illuminating lamps has enough brightness and can ensure better magnifying effect.Three AAA batteries(not included) can completely ensure the voltage required by LED lamp.With clamp design at the bottom of the metal hose, the magnifier with LED light can be firmly fixed on the desk.An great tool for people who are devoted to fine work such as collecting coins/stamps, jewelry appraisal, miniature engraving, embroidering, electronic repair and son on.