Experiment with 20 classic optical illusions included in this kit.</br>The kit includes illusion trick cards?? spinning top with illusion cards?? 3D picture cards?? markers?? 3D glasses?? and more.</br>A 20-page instruction book is included?? describing the science of optical illusions and how to create a wide range of illusory effects.</br>Perfect for young scientists with an interest in optics.</br>Recommended for ages 7 years and up.</br>Challenge your child's imagination with 4M toys and kits.</br>4M educational toys cover a wide range of educational subjects and include science kits?? arts and crafts kits?? robotics kits?? and more.</br>4M offers a wide range of toys and kits to let you build a clock?? crochet a placemat?? or turn your room into