These color-coded cards provide students with a visual representation of place value and help them develop number sense (Color-coding matches Sensational Math Place Value Discs). The cards are all 4" high and range in length from 2.5" to 10" depending on place value. Each set is packaged in a re-sealable poly bag for handy storage. A GEI Endorsed Product. Includes 12 each of the 626642 Place Value Cards Sets. Includes 120 each of 4 values: Ones, Tens, Hundreds, Thousands. 480 cards total.