This set contains Dominique Sennelier's updated selection of 525 colors. For the year 2000, Sennelier introduced 108 new colors and deleted 108 less popular colors. This set offers the complete selection of current colors. If you haven't noticed, over the last 12 months, Sennelier has also increased the size of their sticks. This new set has all 525 soft pastels in the new larger stick!