The Mystery Container

"I got the Mystewy Containew!" Michael will shout on occasion, when I pick him up from preschool. Each child gets a turn in the rotation to take the container home and bring it back the next day with something in it. The child gives the class three clues and they see if anyone can guess what it is.

Earlier in the year, Michael had generated a typical set of clues. "It's brown and has a tail, it swings through trees, and it eats bananas."

But recently he's become more crafty. See if you can guess the object from one of my favorite set of clues:
1. You can't drive it.
2. It doesn't have wheels.
3. But you can read it!