Technical data: Object name: head magnifier with LED light; Material: ABS optical lens Kolor black Lens diameter: 95 x 42 mm Frame size: 185 x 140 x 60 mm Single lens magnifications: 2,5x, 4x, 6x, 8x, 10x, 15x, 20x, 25x Number of LED diodes: 2 We recommend a viewing distance of 1-2 cm/0.39-0.78 inches. Characteristics: 1. This suit is designed for close operation and precise processing and can be used for chips, jewelry, electronic products, printed circuit boards, mobile phone repair, leather and laboratory work, etc. 2. It is very suitable for helping jewelers, watch repairers, the elderly, myopic or visually impaired to observe close objects. 3. We recommend using only one eye to view the subject, because if you use two eyes to observe at the same time, the focus will fail. 4. The frame with soft rubber pad is suitable for all types of heads. Thanks to the flexible arm design, it effectively prevents the magnifying glass from falling and reduces pressure on the back of the nose. 5. Adjustable magnifying glass bracket can be rotated up and down to the desired position, so details can be seen more clearly. 6. Portable design, small and lightweight, you can observe close work, such as wearing glasses. 7. Additional elastic headband can be replaced, which is stronger to wear and more comfortable to use for a long time. Choose the style you like. Packages include: 1 * head mounted magnifier(includes 6 button batteries) 1 * headband; Lens 2*2,5x Lens 2*4X Lens 2*6X Lens 2*8X Lens 2*10X Lens 2*15X Lens 2*20X Lens 2*25X