Designed for versatility and ease of use, our 50mm double convex lenses are suitable for a wide range of applications. Whether you're building a custom telescope, conducting scientific research, or simply enjoying a hobby, these lenses will provide the clarity and magnification you need. The lenses are easy to install and replace, making them a practical choice for both beginners and experienced users. Features -Color:Transparent -Material:Acrylic -Size:5.00X5.00X1.00cm/1.97X1.97X0.39in -Diameter: 50 mm -Highdefinition optics: the double convex lens makes sure highdefinition clarity, providing an enhanced viewing experience -Versatile functionality: suitable for a wide range of optical devices, including telescopes and magnifiers, offering flexibility in use -Easy to install: these lenses are designed for straightforward installation, making it easy to replace or upgrade your equipment -Ideal for learning: suitable for studying purposes, these lenses are great for physics experiments and as learning aid -Durable and : made from acrylic materials, these lenses are designed to withstand regular use and provide longterm reliability Package list: 36 x convex lenses