• Origin：CN(Origin)
• Finishes Material：other
• Style：Ming and Qing Classical
• isCustomized：Yes
• With Storage Space：With 2 Drawers
• Material：Plastic/plastic
• Metal Type：Aluminum
• With Safety Boards：No
• Item No.：DP-TM-0042-elevator model
• Foreign trade or not：No
• Ability Training：Hands-on brain
• Can DIY：Yes
• Specifications：230*110mm
• Multi-function or not：Yes
• Applicable age：Teenager (7-14 years old)
• Scientific and Educational Toy type：Physical toy
• Have authorized private brands：Yes
• 3C configuration category：Similar stationery toys under 14 years old
• Is there an animation image：No
• Electric or not：Yes
• Major sales areas：Southeast Asia, Northeast Asia
• Packing method：net pocket
• There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding.
• If you do not understand what you can contact customer service at any time, I wish you a happy shopping.

Our company specializes in all kinds of DIY physics technology small production. All products have specialized physics science teachers responsible for research and development, and new works are regularly brought to everyone. We are offline training institutions, these works are very popular and recognized by parents and children. All major training institutions are welcome to come to inquire. We can provide free course PPT, develop and produce a line, so that you can use affordable prices, get quality products and perfect after-sales service!

1. Large transmission ratio and compact structure.
2. Smooth transmission.
3. Self-locking. The spiral angle of the worm is very small. The worm can only drive the worm gear, while the worm gear cannot drive worm drive.
4. Worm transmission efficiency is low. It is generally believed that worm transmission efficiency is lower than gear transmission.
Thinking and exploring:
1. How does the elevator control up and down?
2. Can the elevator stop automatically?
3. How do elevators work in real life? What are the shortcomings or improvements?