Bubber Early Literacy Set-Green Includes Bubber, the unique new modeling compound from Sweden that is light as air Terrific educational tool for spellers of all ages Inflatable tray comes with a velcro cover that allows you to turn it into a carry case for portable Bubber fun 60 purple and green upper and lower case alphabet stamps comes with the set Upper and lower case special stamps include signs for French, Spanish, German, Ssedish, Norwegian and Danish