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1. The 3-in-1 function can freely change the working head: grasping forceps, grabbing bucket, suction cup 2. No need for batteries and motors, as long as water can drive the robotic arm, the principle of hydraulic power 3. Self-assembly, cultivate childrens hands-on ability 4. Material: plastic 5. Applicable age: children over 8 years old 6. Weight: about 1250 grams 7. Size: about 28x26x18cm
