Trix

Can anyone help me plese with meaning of TRIX.

Ex:

A- "I think it all started when they finally let the rabbit have a bowl of Trix"

B- "Did they really let the bunny have some Trix?"

Thanks in advance

It is a breakfast cereal. And the expression is from a commercial. The rabbit would try to get some Trix and was never successful because "Trix is for kids."