"Open the page you want to open immediately." These are bookmark string stickers that you can stick in your planner or notebook. Each color has two strings. Cut the strings to the size you need and stick them on the back cover, etc. They are very convenient not only for planners but also for notebooks. Having a bookmark in your notebook makes it easy to see where you left off, just like when reading a book, and you can quickly open to that point and start writing when you begin again.