Ease to use, just pull out the jewelry magnifier to use and put it back when not in use, to take it Great educational tool to show your kids the wonderful tiny world, cultivating their curiosity for new things Perfect gifts for kids who love inspection, encouraging to explore nature; for seniors who are not able to see the small prints Zinc Alloy+Optical Glass, enough for your daily using With a built-in foldable sliding for case that protects the lens and damage, Manufacturer: Tsophreniq