Challenge your eyes with the classic illusions trick card, experience the swirling illusions produced by the illusion spinner, and view and create 3D pictures! Includes over 20 optic fun activities, all packed in a neat carry pouch. It's a cool science kit that guarantees hours of funs! Contains one set of illusion trick cards with more than 15 illusion tricks, one spinning tops card with four spinning illusion cards, 3D picture cards, stencil, two markers for making simple 3D pictures, 3D glass, pouch, and detailed instructions. 7 Years +