3-in-1 hydraulic manipulator for construction. •220 pieces. •Driven by a real hydraulic system. •Includes 4-arm claw, suction cup and gripper. •Improve logical thinking skills. •Explore scientific principles. •No motor or battery required. •3 in 1 multifunction. Contains small parts, choking hazard. Not recommended for children under 3 years. Recommended age 8+. Use under adult supervision. ABS, thermoplastic.