Instruct: Classify Amazon reviews into positive or negative sentiment
Query: the perfect gift for ages over 3 yrs.

This is a toy I love to take down from the shelf. My 3 and 5 year old boys love it! It is easy to build marble runs, watch your marble go, add on new pieces and they are using their brains all the while. This is a toy that will likely get even better for our boys as they get older and more able to engineer some multi level marble runs. For now, I mostly work with them so they aren't frustrated if the tower falls over as we build it. Its awesome!