Specifications: 4 Pieces, Can Be Placed At Home, Company And Other Places, Easy To Access At Any Time, With A Long Necklace, No Space, Very Practical, Elegant Silver Color Steel Chain Long Necklace Is Very BeautifulMaterial: The Necklace Is Made Of Zinc Alloy, The Material Of The Magnifying Glass Is Glass, It Is A Harmless Material For The Body, Safe To UseThe Best Use Distance Is 3-5Cm, At This Distance, You Can Zoom In Most EffectivelyOccasion: Suitable For Reading Magazines, Receipts, Newspapers, Books, Magazines, Maps, Science Classes, Jewelry, Inspection Documents, Crafts, Etc It Is Very Convenient For Your Family, Office And TravelGift Guide: This Magnifying Glass Provides A Very Clear Image And Provides The Delicate Gift For The Elderly, It Will Also Be A Good Gift For Children To Explore Nature And Evoke Their Curiosity And Interest In LearningDesign: These Magnifiers Are Very Clever In Design, Combining A Magnifying Glass And A Silver Necklace, It Is Practical, Beautiful And Convenient,It Is Very Suitable For Elderly People Who Are Not Very Good In Eyes Or Children Who Like To ExploreProducts from LUOLV's store