How about this for a free research project? ⭕️ My child, who was always on YouTube, started to focus on making time for other things! I think it also helps to improve their creativity and imagination! ⭕️ It's safe because you don't need to use scissors or glue. ⭕️ A 61-piece paper craft kit, Karakuri no Tane Crank 3 Yurayura, fosters children's creativity! By assembling the package parts, you can easily create mechanisms used in actual mechanical engineering. The instructions include explanations of how the mechanisms work! With "Karakuri no Tane Crank 3 Yurayura," you can create a "lever and crank (4-bar linkage mechanism)." When you turn the handle, it swings dynamically. "Karakuri no Tane" is a simple white blank, so children can expand their imagination from the movement, color it, attach parts, and create their own original trick toy. Comes with bonus parts that are convenient for decoration! Also, the "Karakuri no Tane" series can be connected, so you can challenge yourself to create combined works. Through "Karakuri no Tane," children will become interested in the mechanisms of various moving machines around them and increase their interest in manufacturing. - Item Name: Karakuri no Tane Crank 3 Yurayura - Number of Pieces: 61 pieces - Usage: Paper craft - Target Age: For children Thank you for viewing.