【4PCS Construction Pull-Back Vehicles Set】Kids Inertia Engineering Toy Cars | Mixer Truck/Dumper Truck/Excavator/Crane Simulation Models | Educational Toys For Boys & Girls Aged 3+ | Durable & Safe ABS Material | Front-Wheel Drive Rear-Wheel Slide Inertia System | Smooth & Rounded Edges | Movable Jo

• 【4PCS Construction Pull-Back Vehicles Set】Kids Inertia Engineering Toy Cars • Mixer Truck/Dumper Truck/Excavator/Crane Simulation Models • Educational Toys For Boys & Girls Aged 3+ • Durable & Safe ABS Material • Front-Wheel Drive Rear-Wheel Slide Inertia System • Smooth & Rounded Edges • Movable Joints For More Fun • Develop Cognitive Ability + Hands-On Skill + Social Skill • Battery-Free Eco-Friendly Design • 【Safe & Eco-Friendly Material】Made of high-quality ABS plastic, strictly tested for safety. The material is shockproof and impact-resistant, with smooth and rounded edges, non-toxic and odorless, ensuring complete safety for children aged 3+. • 【Inertia Drive System】Innovative front-wheel drive and rear-wheel slide system, no batteries required. Just a gentle push to start moving automatically. Easy to operate, helps develop children's hands-on skills while being environmentally friendly. • 【Inertia Drive System】Innovative front-wheel drive and rear-wheel slide system, no batteries required. Just a gentle push to start moving automatically. Easy to operate, helps develop children's hands-on skills while being environmentally friendly. • 【Parent-Child Interactive Education】Through role-playing and engineering scenario simulation, it promotes parent-child interaction and socialization between children. Cultivates teamwork awareness and communication skills while playing, making it an ideal choice for edutainment.