Got it as a gift for my grandson, he loves them. Best part he didn’t have to wait to have batteries installed,before playing with it.These cars are very cool but not built to last with small kids. The spring propulsion is a great idea they work well and go far. It's just the dino heads are easily broken. Tell your kids to take it easy with them and these cars should last a long time.These are super cute, really fun, and the go pretty fast and far but the tops broke off two of them within the first hour of play. They still work without the Dino head but not quite as fun.We have 3 year old twins in family due to pandemic we don't see they. I sent birthday checks but at 3 they don't understand. I was browsing in hopes of finding something they could share, Yes they loved them especially receiving a package with 4 inside. Thank you AmazonToys work great beside the fact that the dinosaurs heads broke off after a few days of playing.Nice quality and the boys loved themKid love itThey are still in the package but they look really cool and I think my Grandson will love them, they r a Christmas gift so we haven’t got to try them.