PREMIUM QUALITY CONSTRUCTION CARS- Heavy duty alloys make it a durable,Very strong and resistant to collision. Long-lasting toy gaming device. AMAAZING 360 ROTATING STUNT-Just push the construction car hard to make the wheels working and put the car upside down on the ground, You will see the car rotate 360 degrees in a loop, which is very interesting. PULL BACK CARS & NO BATTERY REQUIRED - Our cars with 4 wheel double- sided inertia drive,just push it with a hand to get strong power.This can exercise children's hands-on ability.Great for children to play.Fun and environmentally friendly. SUIT FOR ALL KINDS OF BUMPY TERRAIN- Very fun toy for playing outside in the dirt.They can drive on carpet,lawn,and loess ground and so on. ABSOLUTELY SATISFIED - 100% safe and 100% return refund. If you met problem with your pull back trucks, we will solve the problem within 24 hours, just contact us directly. We can not guarantee 0% defective rate, but we guarantee 100% satisfaction.