Press a number block, feel and hear it pop, and practice its name and sound, then snap it to another block to create a number sequence. Children can practice additions and subtractions. It encourages independent learning, and develops fine motor skills. This is a perfect tactile and sensory toy. Preschoolers can practice math and build their confidence. Perfect for fidgety fingers. Includes: 42 Number BubbleBrix, storage bucket with handle, and activity guide packed with early math activities. 42 pieces. Ages 3 to 6