Wipe Clean: Pen ControlHelp your preschooler master tracing and pen control skills with this colorful, practical and fun wipe clean book from Roger Priddy. The sturdy board pages are full of great exercises and activities for your child to complete, helping them to develop these key first skills which lead to the ability to form letters and numbers before learning to write. The special pen included with the book allows all the exercises to be done over and over simply wipe