Expandable toys

Expandable toys (or grow toys) are toys that expand when put in water. They are usually brittle or soft and easily separated.

Toys which expand in water pose a choking hazard if they are small enough to be ingested or inhaled, or if they are likely to break up into parts small enough to be ingested or inhaled.

Because young children often place toys in their mouth to explore them by sucking and chewing on them, expandable toys are not recommended for children under three.