Da Vinci mechanical drum

https://www.youtube.com/watch?v=xTlp0CdNtP4&feature=youtu.be As can be seen from Da Vinci's paintings and writings, music is one of his great interests. In his many inventions, mechanical drums are even more fascinating to many people! The original design was to pull the handles through the front of the horses, and the two wheels and gears were used to activate the five drums on both sides. The drum was designed for various occasions and can be seen from urban parades to military operations. Traces. This simulation model can drive the drum in two ways. One is to normally place the lower side to turn the handle, and the other is to push the trailer in a push-pull manner. The traction drum starts to hit the drumhead and tries to adjust the rotation or It is the speed of pulling, to produce a piece of homemade drum music! Let you enjoy the fun of assembling the model, and you can better understand the mystery of Dawenxi's own design of power machinery. Product specifications ► Product size: 4.2 x 5.2 x 3.8 inches ► Material: Plastic ► Origin: South Korea Precautions: ► Free battery, color free, glue free ► Be careful of small parts, children should swallow ► This product is suitable for use over 14 years old ► Please note that the appreciation period is not equal to the trial, and if it is assembled, it will affect your return interest. Please keep the packaging intact when returning the goods, if it is damaged, it will be difficult to return. ► Books, merchandise, gifts, etc. covered with plastic film, if you want to return the goods, if you have unpacked the film, you will not be returned.