Trick the eyes and bamboozle the brain with these optical illusion experiments! 3D Optics Stereoscopy Science Kit from Ravensburger's Science X toy line features 6 amazing activities that introduce optical science to children. Make objects float in mid-air, meld images with magnifying lenses, draw 3D pictures, make a stereoscope, and more with the 3D Optics Stereoscopy Science Kit. This Educational Toys Planet's small science kit includes everything that you need to experiment with 6 optical illusions. The optics kit contains 3D glasses and image card to view floating objects, tissue paper and moving image card to create moving drawings, 3D drawing card for dimensional drawing activity, 3D card to view dimensional worlds, stereoscope, magnifying lenses, and stereoscopic images, plastic ball and string to create a swinging pendulum, and detailed instruction mnual.