Specifications: This ?Sharpness Intellect Set 2? is used for the study of the theory of the appearance of vision in multiple dimensions which is the result of stacking many compositions of a picture. After that, light is shown to create shadows and dimensions of the picture. When looked from the side, users will not the notice the object, but when looked in front, we will notice the object, seeing it in 3D. This apparatus has a rectangular structure with dimensions of 76x40x30cm. This set is made of MDF wood, in the outer layer; a mirror is attached, and in the inner layer is covered with Formica plastic. This set comes with a light bulb 220V, and a switch, in the opposite side, there is a hole for peeking inside to see the hidden object.