Features: Made of high quality Zinc Alloy+Optical Glass, durable enough for your daily using. With a built-in foldable sliding case that protects the lens from dust and damage. Great educational tool to show your kids the wonderful tiny world, cultivating their curiosity for new things. Ease to use, just pull out the jewelry magnifier to use and put it back when not in use, convenient to take it anywhere. Perfect gifts for kids who love inspection, encouraging them to explore nature; for seniors who are not able to see the small prints now. Specifications: Material: Zinc Alloy+Optical Glass Open size: 123x29x12mm/4.8x1.1x0.5in Folded size: 45x29x12mm/1.8x1.1x0.5in Diameter: 20mm Magnification: 15X Package Includes: 1x Pocket Magnifier Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.