Review on 🚗 ORWINE Inertia Toy Set - Early Educational Friction Powered Cars for Toddlers and Babies - Push and Go Vehicles: Tractor, Bulldozer, Dumper, Cement Mixer - Engineering Toys for Children, Boys, Girls - 4PCS Kids Gift by Shawn Vennakota

I bought this for my son for his 1st birthday. I was expecting them to be "rollback" type cars, where you roll them back a few inches and then rush forward. However, they are much better than these! You just roll them forward a few inches and release them, and they keep moving. You can roll them back to make them move in the opposite direction. They also work well on carpet, which is amazing. They feel heavy and appear to be well made. He's already having so much fun playing with them.