Description _x005F_x000D_ _x005F_x000D_This is a periscope, made of high-quality materials and good craftsmanship, and can be used for a long time.The detachable design makes this periscope convenient for us to use.It can be used not only as children's toys but also as props for optical experiments.In addition, it is also an holiday gift for buying a child. _x005F_x000D_ _x005F_x000D_Features _x005F_x000D_ _x005F_x000D_- Color: Black. _x005F_x000D_- Material: Plastic. _x005F_x000D_- Size: About 29.50X5.00X4.20cm/11.59X1.97X1.65inch. _x005F_x000D_- It is made of sturdy and environmentally friendly plastic materials and has a long service life. _x005F_x000D_- This periscope has been treated with excellent craftsmanship and can be used safely by us. _x005F_x000D_- A set contains two periscopes, which are of goodquality and low price. _x005F_x000D_- The periscope with detachable and splicing design is convenient to carry and store. _x005F_x000D_- It can be used for the education of optical experiments to let children learn more about science.Packing list2 x Professional Periscope