Math is Fun! Reusable 109-Page Deluxe Workbook for Fat Cat Phonics Starter Set Designed to be used with a Fat Cat Phonics Starter Box Set. Combines 0-20 Basics, Review & Handwriting into one convenient workbook. Worksheets are reusable: Watch your child practice a particular skill until it is mastered. Utilzes 130 non-magnetic manipulatives, a dry erase marker and eraser (included as part of the Fat Cat Phonics Starter Set). If you have already purchased a 0-20 Basics, Review or Handwriting Workbook, do not purchase this item.