Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cool but be careful

My kids loves these. They are made very realistically. It would be a bonus if they were made to scale of one another. Be careful giving these to younger kids or if there are younger kids around or if you just don't want to lose parts as the excavator arm and truck tailgate both come off and can be a swallowing hazard or jet get lost easily.