This is DIC Color Guide PART II, First Edition, number 5. There are 17 single color chips and 2 sets of two color chips. There are still plenty of chips remaining, so you can use them. To make it easier to fan out many color chips when choosing colors, a portion of the spine has been cut. (See photo) As shown in the last photo, the fastener will be removed and the guide will be divided into two blocks for compact shipping. Thank you.