These double convex lenses are crafted from acrylic materials to make sure durability and great optical performance. The 50mm diameter allows for a wide field of view, making them suitable for studying purposes, scientific experiments, and hobbyist projects. The lenses are versatile and can be used in various optical devices, providing clear and precise magnification every time. Features -Color:Transparent -Material:Acrylic -Size:5.00X5.00X1.00cm/1.97X1.97X0.39in -Diameter: 50 mm -High clarity: the double convex lens design makes sure a clear and , enhancing your observational experience -Multipurpose use: compatible with a wide range of telescopes, making it suitable for both amateur and skilled astronomers -Userfriendly installation: no need for tools or skills, these lenses can be easily installed by anyone -Ideal for experiments: great for studying purposes, these lenses are suitable for physics experiments and learning aid -High durability: constructed from robust materials, these lenses are designed to withstand regular use and provide consistent performance Package list: 12 x convex lenses