Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Durable- very fun!

We bought this train for our son who is 16 months old. He loves the moving parts, noises, buttons, etc. The animals are just right for him to hold and play with. He can work everthing all by himself. The train goes really well off of the track, even on carpet. I have been very impressed with how durable it is.