This magnifying glass lens set is and anyone needing for reading or detailed work. Made from durable PMAA, these biconvex lenses are break-resistant and practical. The compact size and sliding cover make them easy to store and protect from scratches. Ideal for reading, jewelry inspection, science classes, and more, this set is a practical present for grandparents or anyone with presbyopia or failing vision. Enhance your daily activities with this versatile and reliable magnifier set. Features -Color:Transparent -Material:PMMA -Size:4.20X4.20X0.75 cm/1.65X1.65X0.29in -Durable Material: Made from durable PMAA, ensuring practical use and break resistance for various applications.Versatile Use: Ideal for reading newspapers, books, magazines, maps, and for use in science classes, jewelry inspection, and more -Protective Cover: Comes with a sliding cover to prevent scratches, making it easy to store in a desk or purse without damage -Helpful for Seniors: A great tool for seniors with presbyopia or failing vision, enhancing their reading experience and daily activities -Perfect present: An excellent present choice for grandparents, providing them with a practical and thoughtful solution for their vision needs Package list: 40 x magnifying glass lens