The magnifying glass for is made of high-strength and wear-resistant PVC material, durable for use, not easy to crack or break. It is a useful tool for people with low vision or elderly, make them feel more comfortable and convenient when . Features -Color:Transparent -Material:PVC -Size:18.00X12.00X0.10cm/7.07X4.72X0.04in -Magnifying Power:3X -Effective diameter:180mm -Specifications: 180mmx120mm -This magnifying sheet can allow you to clearly read books and will not make eyes feel uncomfortable. -As well as making it easy to hold, the black frame makes it easy to locate because of transparent lens. -You can use them in different scenes, such as home, car, travel or office, easily meet your different needs. -Wide of application. Perfect for books, looking up telephone numbers, scanning maps, etc. -These magnifying glasses for are compact in size and light in weight, easy to carry and use anywhere anytime. Package list: 4 x Magnifying Sheets