10x 15x 20x 25x Eyewear Single Eye Magnifier with Headband Lupa Magnify Lamp Glasses with LED Light Magnifying Glass Loupe Single eye patch magnifier with adjustable LED. 4 different magnifications can be interchanged quickly. LED light source and battery compartment are designed novelly. Handsfree eyeglasses legs and headband are interchangeable to ensure more comfortable and tight wearing. Single eye patch can rotate 180 degrees upwards and downwards. Widely used in mechanical processing， electronic repair， jewelry appraisal， timepieces repair and miniature engraving， etc. LED powered by three LR1130 batteries. Lens magnifications: 10X， 15X， 20X， 25X Battery: 3 * LR1130 batteries Color: Black Material: ABS + Optical lens Product weight: 38g / 1.35oz(With 25x lens) Package size: Approx. 19.5 * 14.5 * 6.5cm / 7.7 * 5.7 * 2.6in Package weight: Approx. 194g / 6.84oz 1 * Single Eye Shape Eyewear Magnifier 1 * Headband 4 * Pair of Lens 1 * User manual (English & Chinese)