Car Engine Model All-metal Mini Manual Assembly V2 Double-cylinder Toy Collection Decoration

Main Features
Eco-friendly aluminum alloy, stainless steel material, anodizing coloring process, durable and non-toxic
DIY assembled, cultivate kids’ creativity and imagination
Let the children have an interest in learning, thus creating the ability of children’s thinking, mathematical combination logic
Easy and funny to play
Kids can learn the great power of power energy and the beauty of nature
Ideal toy and gift for all children above 10 years old
Powered by 2 lithium-ion battery ( included ), 500mAh, 3.7V, Charging 40 minutes, using no less than 30 minutes under full charge
External power supply: DC 10V-20V
Assembly time: about 3 hours