Collection Da Vinci-DIY Assembled Model of Spiral Helicopter

https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_288a34c4-72c4-428c-8ecd-2c43daaec8ec.jpg https://youtu.be/tqk6_yRt7zI Reproduce Leonardo da Vinci's genius design, a model that novices can easily complete! This spiral design is derived from Leonardo’s 1480 painting. The helicopter demonstrated Da Vinci's ingenuity and his obsession with flying; the operation of the rotor wing can be driven by the pilot using his arms and legs. https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_c13c6892-e9e7-4365-8137-a9067baa1dfe.jpg Today's helicopters also use a similar concept of vertical rotation when taking off, demonstrating the combination of natural and mechanical motion! https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_767003f0-0397-4877-ada0-352541bac134.jpg ▲The assembly process does not require glue, paint or batteries at all. It only requires careful eyes to ensure that various gears and parts are installed correctly. You can make your own decorations with both depth and elegance! https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_ee11383a-7247-4f2b-8517-65384b487dd3.jpg https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_84d1dcaa-2d8a-4396-87f6-1e664d69b551.jpg https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_8b29b10d-cae6-4652-b0bc-c5fcab8a3646.jpg Specifications: ► Product size: 13 x 13 x 14 cm ► Packing size: 20 x 30 x 5.75 cm ► Material: Plastic ► Origin: Philippines Precautions: ► No battery, no coloring, no glue can be assembled ► Be careful of children swallowing small parts ► This product is suitable for use over 14 years old ► Please note that the appreciation period is not equal to the trial, if there is assembly, it will affect your return rights. Please keep the packaging intact when returning or replacing the product. If it is damaged, it will be difficult to return or replace the product. ► Books, merchandise, gifts, etc. covered with plastic film will not be returned if the plastic film has been opened.