Excellent! These side-joining pieces are designed to allow children to discover the differences between upper and lower case letters in a way that will have them learning the alphabet in no time! These squares even join to Morphun Building Systems. Sets come in a sturdy plastic tub and contains 300 pieces with Activity Guide. Ages PreK and up. Shipped directly from the manufacturer.--rush shipping not available. Gift wrap not available Information on how to place your order by fax or by telephone. Product Number: AMSR1292 (Math), AMSR1293 (Phonics and Lower case Letters), AMSR1294 (Upper and Lower Case Alphabets), AMSR1296 (Lower Case Alphabets)