Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fun but fragile

My mother bought two of these for my sons, ages 3 and 5. They were a lot of fun while they lasted, which wasn't that long! One of the boys snapped the antenna off of his remote, rendering it useless, after only a couple of days. The other boy managed to snap the front axle of his car by driving it down a step and there is no way it can be fixed.One more complaint - the off switch didn't actually work on EITHER car, meaning that the only way to turn it off was to pull the batteries out. Otherwise the lights stayed on and the batteries ran down in about a day and a half.