A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. This is achieved by using mirrors aligned in a particular pattern so that images are reflected multiple times and carried to the viewer without exposing the viewer.
This kit contains all the elements needed to assemble a fully-functional Periscope. You child will have great fun assembling it and playing with it.