From Didax Smart kids, Clusters is an exciting word-building game for kids! It includes 98 plastic tiles in 10 bright colors, representing the most common letter groups found in English. Unique two-tiered tile holders provide up to four players with workspaces to create their own words in preparation for play. Tiles include double vowels, digraphs, blends, silent letters and more. This game can be played with set rules included or in a variety of other exciting ways. A great way for children to learn to spell and read.