Key Features :
i : Bright, color-coded magnets help you demonstrate critical place value skills on your whiteboardii : Facilitates hands-on practice in the classroomiii : Essential tool for mat series, including popular Asian programsiv : Place values are color-codedv : Reinforce numbers, counting, cardinality, and operationsvi : Includes 140 disks (35 each of 4 places: thousands, hundreds, tens, and ones) plus 4 headings