1. Multiple magnifying glasses, so that users with low vision can also read text. Meet a of reading needs 2. The classic luminous magnifying glass can clearly observe any object and provide a comfortable reading experience. 3. Easy to use, you can easily turn on and off the LED lights Parameters of pull-out magnifying glass: Product weight: about 55 grams Product size: about 85x46x 18mm (folded), about 133x46x18mm (opened) Product magnification: 30 times (large lens), 60 times (small lens), 90 times (small lens) Lens diameter: 25mm (large lens), 12mm (small lens), 8mm (small lens) Battery model: 3 LR44 button batteries Hand-held magnifying glass parameters: Product magnification: 3 times (large lens), 45 times (small lens) Battery model: 3 AAA batteries (not included) Product weight: about 155 grams Lens diameter: 75mm (large lens), 22mm (small lens) Material:Plastic + glass + acrylic optical lens colour:Black+white Package Contents: 2 * Magnifying glass 1 * Chinese and English manual Only the above package content, other products are not included. Note: Light 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.