DIY Projector Student Handmade Toy Science Experiment Self-made Slide Projector Teaching Aid Model Main Feature: 1,The 3D Puzzle Mode, a Mechanical art, cool gift for boyfriend, husband, boys, girls or friends in birthday, Christmas, Thanksgiving Day, Valentine's Day or any special time 2, Eco-friendly and well made, without dyestuff and varnish, not treated with any harmful substances.<br> With Cutting technology and Exclusive design 3, Brain Teaser Toys.<br> The 3D puzzle kit need your more time think and patience, to put piecing this kit together, requires you to pay attention to little details.<br> Well worth the time and a nice stress reliever 4, Easy to DIY assemble,working with your hands and head.<br> Detailed English Instruction, good direction.<br> FINE MONTOR SKILLS and HAND-EYE COOPERATION 5,Size16.<br>69x8.<br>5x7.<br>5cm Package includes: 1 piece of 3D assembled projector