Stack them, float them, send them down the slide! It's a penguin party on the Waddle Bobbers iceberg! These little penguins have weighted bases so you can spin them and make them wobble outside the tub. Take them inside the tub and they float! Both the penguins and the iceberg are sealed, so you never have to worry about water getting inside. Fill up the tub, set the iceberg adrift, and send the penguins racing down the slide! Whoosh! Then practice your stacking and twirling skills with the penguins. Things are heating up at this fun little penguin party!