The Hobonichi Techo uses 12 soft colors across the book. TheTSUKI no IRO stationery series incorporates these colors intosimple designs. Clear round stickers made from durable PETmaterial. The 3.5 mm stickers are small and perfect for checklistsand habit trackers. There are two sheets included, with 48stickers of each color, for a total of 576 stickers.