Welcome to our store!

1. Wooden material, environmentally friendly and non-toxic, safe to use, let the child understand how the robotic arm works. 2. Cultivate children's ability to use both hands and brain, allowing children to experience the fun of DIY. 3. Hydraulic transmission is a type of transmission mode that uses the pressurized fluid in the closed system to transmit motion and power. 4. The mechanical energy is converted into the pressure energy of the fluid, and then the pressure energy of the fluid is converted into mechanical energy. 5. Press the piston rod of the cylinder by hand to transmit energy to water through the piston. The water pressure can be transmitted to the mechanical arm through the piston rod of the small needle cylinder.
Color: wood color
Material: wood
Size: about 53*12*30cm
10cm=100mm=3.94inch 1 set * mechanical arm DIY toys
Only the above package content, other products are not included.

Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.