Special price US $6.46 Happyxuan DIY Walking Robot Kits Dog Physics Educational Electric Science Toy Experiments Kid Scien

Happyxuan DIY Walking Robot Kits Dog Physics Educational Electric Science Toy Experiments Kid Scien

[32986484488] Happyxuan DIY Walking Robot Kits Dog Physics Educational Electric Science Toy Experiments Kid Scientist Discovery Gifts Teenager Materials: wood Suitable age: over 5 years old Product size: 7.5*7*8 cm (2.95*2.76*3.15 inches) Principle: The motor shaft, triplet, iron shaft and the connecting rod form a plurality of crank rocker structure. The robot dog uses a motor to drive a plurality of crank rocker mechanisms for regular motion. Under the dribing of the motor, the connecting rod and the rocking rod are alternately moving forward to achieve the walking action. Note: the price is for 1 set. The batteries are not included. Keep a few gaps. 

US $10.76

Limited Offer 40%  US $6.46

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