Spark a love of numbers – and build math confidence – with Hot Dots featuring the global hit TV series Numberblocks! Kids use the Hot Dots Numberblocks pen to answer early math questions and receive immediate feedback, including audio, sounds, and music from the show. Includes Hot Dots pen and 60-page spiral bound workbook packed with Numberblocks math activities. Brilliant! Details:Multicolor8" x 9" x 2" package sizeIncludes pen with light and sounds60 page spiral-bound workbookFor ages 4 and up