The set of Usk cards is named after a river in South Wales. All the BusyCards are conceived and made in the UK. All the named 'River Cards' are visual aids. Parents can produce them when chatting to their infant about educational matters. Although of 'playing card' style they are designed for illustrative purposes rather than for infant paticipation in game playing.
The random dots can be used for counting, subitizing, and other activities: