Safe & Durable: The Vehicles are made of bpa free, non-toxic materials, smooth edges prevent child from hurting hands. They are durable and safe toddler toys for baby, easy to grasp and take. This Pull Back Vehicles Toys Set is friction powered and no batteries are required. Energy saving and environmental friendly. You just need to pull it backwards and release the car, car will go forward. Some parts are movable which increases the fun of playing. Play & Learn-This vehicle toy set is colorful with different style, which can stimulate baby’s imagination, cultivate curiosity, encourage hand-eye coordination and promote recognition ability. Gifting-This ideal vehicles toy set can be a very decent present for baby’s birthday party, Christmas or any other special occasions. Convenient for portable and storage. Anything and anytime, feel free to contact us via Amazon message. Four-wheel drive pull back racing beat-up model car, it’s cool and interesting. Cars give children more fun to play. Suitable for baby Under 3 years old. Manual pull back movement Colorful trucks, safe and environmentally friendly, can help kids recognize different type of vehicles and bus.