This children's science experiment toy is suitable for young explorers. The DIY wooden periscope kit allows kids to engage in hands-on learning by building their own extendable periscope. Designed for elementary school students, it encourages creativity and scientific curiosity while providing a fun and educational experience. Features -Color:Khaki -Material:Wood -Size( ):18.00X3.70X3.70cm/7.07X1.45X1.45in -Size(M90):7.50X3.50X3.50cm/2.95X1.38X1.38in -Interactive learning: inspire kids' curiosity with a diy retractable periscope, encouraging exploration and fostering a love for science and discovery -Easy to use: specially designed for elementary students, this kit offers simple assembly steps, making it easy for children to understand and apply optical principles -Reliable materials: made from wooden materials, this periscope is safe, durable, ensuring a experience for kids -Versatile applications: suitable for home, school, or outdoor educational activities, this kit allows children to make science experiments anytime, anywhere -Family bonding: strengthen parentchild relationships by working together on this fun project, creating cherished memories while learning and playing Package list: 2 x sets of Children's Science Education Toys