A set of 38 blue EVA foam tiles 38mm square printed with double and triple letter combinations. The loop strip on the reverse of each attaches instantly to our Clever Chimps Set.60 single letters on 38mm square EVA foam – 2 each of the alphabet plus another 2 each of a, e, i and o – with both hook and loop on the reverse allowing them to attach instantly to our Clever Chimps Set. Use alone or with the double and triple combinations set.