Description This is a periscope model, made of wood material and fine craftsmanship, and can be used for a long time. This kids assemblyperiscopeis safe and convenient for kids DIY assemble. It can be used not only as children's toy but also as prop for optical experiments. Features -Color:Beige -Material:Wood -Size:19.50X8.50X4.00cm/7.66X3.34X1.57in - Made ofwood material, strong and practical, durable to use. Great toy for teens to play with. - Kids Periscope is an optical instrument that uses the principle of light reflection so this simple periscope can be as the teaching tool. - The periscope with detachable and splicing design is convenient to carry and store. - Suitable for children to experience the fun of optics physical experiment in the process of playing this fun gadget. - Put education in fun, cultivate scientific knowledge. Perfect for any school, or home use. Package list: 1 x set of diy Periscope kit