Description Are you looking for a professional periscope? Want to give your child a meaningful piece of scientific equipment? Please have a look at this product!This is a professional periscope, using optical principles, interesting and . The product design conforms to the ergonomic design and is easy to use. Features -Color: Assorted Color -Material: Plastic -Size: 29.50X5.00X5.00cm;11.59X1.97X1.97in - This educational toy can exercise kids' vision - For kids intelligence development - Improve children's ability about mind and hand - and with high quality -Lens can be 360° adjusted, and lens can be disassembled -Periscope can be used for physical optics experiment equipment, or be DIY kit toys for kids backyard games or optical education This educational toy can exercise kids' vision For kids intelligence development Improve children's ability about mind and hand and with high quality Lens can be 360° adjusted, and lens can be disassembled