Ben 10 Playsets!

The Transforming Alien Rocks can be used in the Alien Laboratory (sold separately), or on their own.

The Aliens are hidden inside a transforming rock that bubbles and dissolves in water to reveal a 1" collectible figure.

Each box contains 2 rocks - look for all 10 to complete your collection.

For ages 4 and up. Ben 10 Transforming Rocks by Bandai